2025
Maiko Andrade, Juliano Araujo Wickboldt
A Study on 5G Network Slice Isolation Based on Native Cloud and Edge Computing Tools Journal Article
In: Journal of Network and Systems Management (JNSM), 33 (90), 2025, ISSN: 1573-7705.
Abstract Links BibTeX Tags: 5G Cloud Computing Fog & Edge Computing Network Virtualization & Slicing
@article{journals/jnsm/Andrade5GSlice25,
title = {A Study on 5G Network Slice Isolation Based on Native Cloud and Edge Computing Tools},
author = {Maiko Andrade and Juliano Araujo Wickboldt},
url = {https://link.springer.com/article/10.1007/s10922-025-09958-5},
doi = {10.1007/s10922-025-09958-5},
issn = {1573-7705},
year = {2025},
date = {2025-07-09},
urldate = {2025-07-09},
journal = {Journal of Network and Systems Management (JNSM)},
volume = {33},
number = {90},
abstract = {5G networks support various advanced applications through network slicing, network function virtualization (NFV), and edge computing, ensuring low latency and service isolation. However, private 5G networks relying on open-source tools still face challenges in maturity and integration with edge/cloud platforms, compromising proper slice isolation. This study investigates resource allocation mechanisms to address this issue, conducting experiments in a hospital scenario with medical video conferencing. The results show that CPU limitations improve the performance of prioritized slices, while memory restrictions have minimal impact. The generated data and scripts have been made publicly available for future research and machine learning applications.},
keywords = {5G, Cloud Computing, Fog & Edge Computing, Network Virtualization & Slicing},
pubstate = {published},
tppubtype = {article}
}
5G networks support various advanced applications through network slicing, network function virtualization (NFV), and edge computing, ensuring low latency and service isolation. However, private 5G networks relying on open-source tools still face challenges in maturity and integration with edge/cloud platforms, compromising proper slice isolation. This study investigates resource allocation mechanisms to address this issue, conducting experiments in a hospital scenario with medical video conferencing. The results show that CPU limitations improve the performance of prioritized slices, while memory restrictions have minimal impact. The generated data and scripts have been made publicly available for future research and machine learning applications.
Carlos Eduardo Menin, Igor Martins Silva, Vinícius Boff Alves, Gabriel Lando, Cristiano Bonato Both, José Marcos Silva Nogueira, Juliano Araujo Wickboldt
Explainable performance analysis of open-source 5G core network implementations via observability Inproceedings
In: 11th IEEE International Conference on Network Softwarization, NetSoft 2025, Budapest, Hungary, Jun 23-27, 2025, pp. 397-405, IEEE, 2025, ISSN: 2693-9789, (Best student paper award).
Abstract Links BibTeX Tags: 5G Microservices Network Virtualization & Slicing Observability
@inproceedings{conf/netsoft/Menin5GCore25,
title = {Explainable performance analysis of open-source 5G core network implementations via observability},
author = {Carlos Eduardo Menin and Igor Martins Silva and Vinícius Boff Alves and Gabriel Lando and Cristiano Bonato Both and José Marcos Silva Nogueira and Juliano Araujo Wickboldt},
url = {https://ieeexplore.ieee.org/abstract/document/11080540},
doi = {10.1109/NetSoft64993.2025.11080540},
issn = {2693-9789},
year = {2025},
date = {2025-06-23},
urldate = {2025-06-23},
booktitle = {11th IEEE International Conference on Network Softwarization, NetSoft 2025, Budapest, Hungary, Jun 23-27, 2025},
pages = {397-405},
publisher = {IEEE},
abstract = {The advent of fifth-generation mobile networks (5G) has brought transformative improvements in data transfer speeds, latency reduction, and device connectivity, enabled by the softwarization, virtualization, and disaggregation of network functions. Open-source projects have been instrumental in facilitating software-driven 5G deployments on standard hardware, accelerating the development of private 5G networks, test environments, and advancing research and innovation in the domain. Despite these advancements, the current maturity of open-source solutions remains inadequate for high-performance, large-scale 5G deployments. Existing 5G performance testing approaches primarily adopt a black-box perspective, which fails to capture the intricate interactions among core 5G components, thereby hindering the identification of performance bottlenecks. Additionally, testing is often limited to small-scale environments, and publicly available datasets from real-world deployments are scarce. To overcome these challenges, this paper introduces an observability-driven methodology for testing 5G core network performance, offering deeper insights into the internal interactions of network components. We contribute to research and innovation in 5G and beyond field by (i) enabling the simulation of varying user arrival rates, (ii) releasing a public dataset capturing data of 5G core components interactions, logs, and performance metrics, and (iii) providing a comparative analysis of two popular open-source 5G core implementations based on our observability-oriented methodology.},
note = {Best student paper award},
keywords = {5G, Microservices, Network Virtualization & Slicing, Observability},
pubstate = {published},
tppubtype = {inproceedings}
}
The advent of fifth-generation mobile networks (5G) has brought transformative improvements in data transfer speeds, latency reduction, and device connectivity, enabled by the softwarization, virtualization, and disaggregation of network functions. Open-source projects have been instrumental in facilitating software-driven 5G deployments on standard hardware, accelerating the development of private 5G networks, test environments, and advancing research and innovation in the domain. Despite these advancements, the current maturity of open-source solutions remains inadequate for high-performance, large-scale 5G deployments. Existing 5G performance testing approaches primarily adopt a black-box perspective, which fails to capture the intricate interactions among core 5G components, thereby hindering the identification of performance bottlenecks. Additionally, testing is often limited to small-scale environments, and publicly available datasets from real-world deployments are scarce. To overcome these challenges, this paper introduces an observability-driven methodology for testing 5G core network performance, offering deeper insights into the internal interactions of network components. We contribute to research and innovation in 5G and beyond field by (i) enabling the simulation of varying user arrival rates, (ii) releasing a public dataset capturing data of 5G core components interactions, logs, and performance metrics, and (iii) providing a comparative analysis of two popular open-source 5G core implementations based on our observability-oriented methodology.
Carlos Fraga, Antônio Jorge Gomes Abelém, Vinicius Cunha Martins Borges, Jéferson Campos Nobre, Juliano Araujo Wickboldt, Glauber Dias Gonçalves
ContAudIT: Uma Proposta Fim-a-Fim para Auditoria Contínua de Gerência de Mudanças em TI usando Blockchain Inproceedings
In: 43º Simpósio Brasileiro de Redes de Computadores e Sistemas Distribuídos, SBRC 2025, Natal, RN, Brazil, May 19-23, 2025, pp. 602–615, SBC, 2025, ISSN: 2177-9384, (In portuguese).
Abstract Links BibTeX Tags: Auditing Change Management ITIL
@inproceedings{conf/sbrc/FragaAudit25,
title = {ContAudIT: Uma Proposta Fim-a-Fim para Auditoria Contínua de Gerência de Mudanças em TI usando Blockchain},
author = {Carlos Fraga and Antônio Jorge Gomes Abelém and Vinicius Cunha Martins Borges and Jéferson Campos Nobre and Juliano Araujo Wickboldt and Glauber Dias Gonçalves},
url = {https://sol.sbc.org.br/index.php/sbrc/article/view/35161},
doi = {10.5753/sbrc.2025.6327},
issn = {2177-9384},
year = {2025},
date = {2025-05-19},
urldate = {2025-05-19},
booktitle = {43º Simpósio Brasileiro de Redes de Computadores e Sistemas Distribuídos, SBRC 2025, Natal, RN, Brazil, May 19-23, 2025},
pages = {602--615},
publisher = {SBC},
abstract = {IT changes are essential to the ongoing operation of modern organizations, but inadequate change management can pose significant risks to business continuity. In this context, auditors play a key role in ensuring change management is carried out according to approved procedures. Traditionally, audit firms perform periodic inspections of IT systems and change logs. However, the increasing volume, complexity, and automation of changes makes it necessary to ensure compliance between audit inspections. This paper proposes ContAudIT, a blockchain-based approach to continuous IT change audits. An integrated solution for a change orchestration framework with a blockchain ledger that certifies and records each innovative change. The change chain between inspection events allows auditors to verify that only certified changes have been made to the infrastructure.},
note = {In portuguese},
keywords = {Auditing, Change Management, ITIL},
pubstate = {published},
tppubtype = {inproceedings}
}
IT changes are essential to the ongoing operation of modern organizations, but inadequate change management can pose significant risks to business continuity. In this context, auditors play a key role in ensuring change management is carried out according to approved procedures. Traditionally, audit firms perform periodic inspections of IT systems and change logs. However, the increasing volume, complexity, and automation of changes makes it necessary to ensure compliance between audit inspections. This paper proposes ContAudIT, a blockchain-based approach to continuous IT change audits. An integrated solution for a change orchestration framework with a blockchain ledger that certifies and records each innovative change. The change chain between inspection events allows auditors to verify that only certified changes have been made to the infrastructure.
Carlos Eduardo Menin, Igor Martins Silva, Vinícius Boff Alves, Gabriel Lando, Cristiano Bonato Both, José Marcos Silva Nogueira, Juliano Araujo Wickboldt
Enabling cloud-native observability for white-box performance analysis of the 5G core Inproceedings
In: 38th IEEE/IFIP Network Operations and Management Symposium, NOMS 2025, Honolulu, HI, USA, May 12-16, 2025, pp. 1–6, IEEE, 2025, ISSN: 2374-9709, (Experience session paper).
Abstract Links BibTeX Tags: 5G Microservices Network Virtualization & Slicing Observability
@inproceedings{conf/noms/Menin5GCore25,
title = {Enabling cloud-native observability for white-box performance analysis of the 5G core},
author = {Carlos Eduardo Menin and Igor Martins Silva and Vinícius Boff Alves and Gabriel Lando and Cristiano Bonato Both and José Marcos Silva Nogueira and Juliano Araujo Wickboldt},
url = {https://ieeexplore.ieee.org/abstract/document/11073613},
doi = {10.1109/NOMS57970.2025.11073613},
issn = {2374-9709},
year = {2025},
date = {2025-05-12},
urldate = {2025-05-12},
booktitle = {38th IEEE/IFIP Network Operations and Management Symposium, NOMS 2025, Honolulu, HI, USA, May 12-16, 2025},
pages = {1--6},
publisher = {IEEE},
abstract = {The fifth generation of mobile networks (5G) has introduced significant advancements in data transfer rates, latency, and device density, empowered by softwarization, virtualization, and disaggregation of network functions. Open-source initiatives have played a crucial role in enabling software-based 5G network deployments on commodity hardware, driving the growth of private 5G networks and testbeds, and fostering research and innovation in the field. However, the maturity level of such open-source technologies is still insufficient for highly performant large-scale deployments. Current 5G performance testing methodologies rely predominantly on a black-box approach, which overlooks the complexity of interactions between 5G core components, limiting the ability to explain performance bottlenecks. To address this limitation, this paper proposes a new observability-driven methodology for 5G core network performance testing, which improves visibility into internal component interactions. We contribute to research and innovation in 5G and beyond field by (i) implementing testing workloads that are able to simulate varying user arrival rates and (ii) integrate a set of cloud-native observability tools to allow white-box performance evaluation of the 5G core.},
note = {Experience session paper},
keywords = {5G, Microservices, Network Virtualization & Slicing, Observability},
pubstate = {published},
tppubtype = {inproceedings}
}
The fifth generation of mobile networks (5G) has introduced significant advancements in data transfer rates, latency, and device density, empowered by softwarization, virtualization, and disaggregation of network functions. Open-source initiatives have played a crucial role in enabling software-based 5G network deployments on commodity hardware, driving the growth of private 5G networks and testbeds, and fostering research and innovation in the field. However, the maturity level of such open-source technologies is still insufficient for highly performant large-scale deployments. Current 5G performance testing methodologies rely predominantly on a black-box approach, which overlooks the complexity of interactions between 5G core components, limiting the ability to explain performance bottlenecks. To address this limitation, this paper proposes a new observability-driven methodology for 5G core network performance testing, which improves visibility into internal component interactions. We contribute to research and innovation in 5G and beyond field by (i) implementing testing workloads that are able to simulate varying user arrival rates and (ii) integrate a set of cloud-native observability tools to allow white-box performance evaluation of the 5G core.
Vinícius Boff Alves, Marcelo Basso, Laura Becker Ramos, Julien Guillemot, André Figueira Riker, Antônio Jorge Gomes Abelém, Luciano Paschoal Gaspary, Mohamed Faten Zhani, Jaime Galan-Jimenez, Juliano Araujo Wickboldt, Weverton Luis Costa Cordeiro
Towards Programmable Low-End Networking: Research Challenges and Lessons Learned Inproceedings
In: 38th IEEE/IFIP Network Operations and Management Symposium, NOMS 2025, Honolulu, HI, USA, May 12-16, 2025, pp. 1–9, IEEE, 2025, ISSN: 2374-9709.
Abstract Links BibTeX Tags: Low-Power Wide-Area Networks (LPWAN) Softwarized & Programmable Networks
@inproceedings{conf/noms/AlvesLowEnd25,
title = {Towards Programmable Low-End Networking: Research Challenges and Lessons Learned},
author = {Vinícius Boff Alves and Marcelo Basso and Laura Becker Ramos and Julien Guillemot and André Figueira Riker and Antônio Jorge Gomes Abelém and Luciano Paschoal Gaspary and Mohamed Faten Zhani and Jaime Galan-Jimenez and Juliano Araujo Wickboldt and Weverton Luis Costa Cordeiro},
url = {https://ieeexplore.ieee.org/abstract/document/11073665},
doi = {10.1109/NOMS57970.2025.11073665},
issn = {2374-9709},
year = {2025},
date = {2025-05-12},
urldate = {2025-05-12},
booktitle = {38th IEEE/IFIP Network Operations and Management Symposium, NOMS 2025, Honolulu, HI, USA, May 12-16, 2025},
pages = {1--9},
publisher = {IEEE},
abstract = {The research agenda on programmable data planes has been primarily focused on high-end networking devices, driven by technical requirements derived from operations & management needs of large scale datacenters and cloud providers. In this paper, we argue in favor of a yet incipient but equally paramount and challenging topic in this agenda: research on programmable low-end devices, like Low-power wide-area network (LPWAN). One main motivation is ünlocking" LPWAN, enabling one to freely redefine how they parse and process packets by means of Domain-specific languages such as P4. In addition to reducing capital expenditure by allowing interoperability between devices from multiple vendors, programmability would open LPWAN to an entire novel class of use cases, like providing inclusive internet access to technologically marginalized populations (such as rural communities). To contribute to this emerging research agenda, we propose a conceptual architecture and demonstrate the technical feasibility of a Programmable LPWAN by means of a proof-of-concept prototype, built using off-the-shelf hardware. More importantly, we present and discuss valuable lessons towards the design of such devices, maintaining their popular characteristics (like low power, low cost, long rage) yet freely (re)programmable for a broader class of novel use cases.},
keywords = {Low-Power Wide-Area Networks (LPWAN), Softwarized & Programmable Networks},
pubstate = {published},
tppubtype = {inproceedings}
}
The research agenda on programmable data planes has been primarily focused on high-end networking devices, driven by technical requirements derived from operations & management needs of large scale datacenters and cloud providers. In this paper, we argue in favor of a yet incipient but equally paramount and challenging topic in this agenda: research on programmable low-end devices, like Low-power wide-area network (LPWAN). One main motivation is ünlocking" LPWAN, enabling one to freely redefine how they parse and process packets by means of Domain-specific languages such as P4. In addition to reducing capital expenditure by allowing interoperability between devices from multiple vendors, programmability would open LPWAN to an entire novel class of use cases, like providing inclusive internet access to technologically marginalized populations (such as rural communities). To contribute to this emerging research agenda, we propose a conceptual architecture and demonstrate the technical feasibility of a Programmable LPWAN by means of a proof-of-concept prototype, built using off-the-shelf hardware. More importantly, we present and discuss valuable lessons towards the design of such devices, maintaining their popular characteristics (like low power, low cost, long rage) yet freely (re)programmable for a broader class of novel use cases.
Marcelo Basso, Vinícius Boff Alves, Laura Becker Ramos, Julien Guillemot, André Figueira Riker, Antônio Jorge Gomes Abelém, Luciano Paschoal Gaspary, Mohamed Faten Zhani, Jaime Galan-Jimenez, Juliano Araujo Wickboldt, Weverton Luis Costa Cordeiro
Bringing Programmable Low-End Networks to Life: A Field Study with An Off-the-Shelf Prototype Inproceedings
In: 38th IEEE/IFIP Network Operations and Management Symposium, NOMS 2025, Honolulu, HI, USA, May 12-16, 2025, pp. 1–3, IEEE, 2025, ISSN: 2374-9709, (Demo session, Best demo award).
Abstract Links BibTeX Tags: Low-Power Wide-Area Networks (LPWAN) Softwarized & Programmable Networks
@inproceedings{conf/noms/BassoLowEnd25,
title = {Bringing Programmable Low-End Networks to Life: A Field Study with An Off-the-Shelf Prototype},
author = {Marcelo Basso and Vinícius Boff Alves and Laura Becker Ramos and Julien Guillemot and André Figueira Riker and Antônio Jorge Gomes Abelém and Luciano Paschoal Gaspary and Mohamed Faten Zhani and Jaime Galan-Jimenez and Juliano Araujo Wickboldt and Weverton Luis Costa Cordeiro},
url = {https://ieeexplore.ieee.org/abstract/document/11073634},
doi = {10.1109/NOMS57970.2025.11073634},
issn = {2374-9709},
year = {2025},
date = {2025-05-12},
urldate = {2025-05-12},
booktitle = {38th IEEE/IFIP Network Operations and Management Symposium, NOMS 2025, Honolulu, HI, USA, May 12-16, 2025},
pages = {1--3},
publisher = {IEEE},
abstract = {We present a prototype that could open the doors to mitigate digital exclusion in technologically underserved populations. By converging software-defined networks (SDN) with programmable data planes (PDP), our approach enables one to customize low-cost hardware to fit the network behavior. We integrate low-power wide-area networks (LPWANs), known for their scalability and efficiency, with PDPs to propose a flexible solution for changing requirements, such as distance and terrain configurations, validated through real-world test scenarios.},
note = {Demo session, Best demo award},
keywords = {Low-Power Wide-Area Networks (LPWAN), Softwarized & Programmable Networks},
pubstate = {published},
tppubtype = {inproceedings}
}
We present a prototype that could open the doors to mitigate digital exclusion in technologically underserved populations. By converging software-defined networks (SDN) with programmable data planes (PDP), our approach enables one to customize low-cost hardware to fit the network behavior. We integrate low-power wide-area networks (LPWANs), known for their scalability and efficiency, with PDPs to propose a flexible solution for changing requirements, such as distance and terrain configurations, validated through real-world test scenarios.
Felipe Machado Schwanck, Marcos Tomazzoli Leipnitz, Joel Luís Carbonera, Juliano Araujo Wickboldt
A Framework for testing Federated Learning algorithms using an edge-like environment Journal Article
In: Future Generation Computer Systems, 166 , pp. 107626, 2025, ISSN: 0167-739X.
Abstract Links BibTeX Tags: Cloud Computing Federated Learning Fog & Edge Computing Machine Learning
@article{journal/fgcs/Schwanck25,
title = {A Framework for testing Federated Learning algorithms using an edge-like environment},
author = {Felipe Machado Schwanck and Marcos Tomazzoli Leipnitz and Joel Luís Carbonera and Juliano Araujo Wickboldt},
url = {https://www.sciencedirect.com/science/article/pii/S0167739X24005909},
doi = {10.1016/j.future.2024.107626},
issn = {0167-739X},
year = {2025},
date = {2025-05-01},
urldate = {2025-05-01},
journal = {Future Generation Computer Systems},
volume = {166},
pages = {107626},
abstract = {Federated Learning (FL) is a machine learning paradigm in which many clients cooperatively train a single centralized model while keeping their data private and decentralized. FL is commonly used in edge computing, which involves placing computer workloads (both hardware and software) as close as possible to the edge, where data are created and where actions are occurring, enabling faster response times, greater data privacy, and reduced data transfer costs. However, due to the heterogeneous data distributions/contents of clients, it is non-trivial to accurately evaluate the contributions of local models in global centralized model aggregation. This is an example of a major challenge in FL, commonly known as data imbalance or class imbalance. In general, testing and evaluating FL algorithms can be a very difficult and complex task due to the distributed nature of the systems. In this work, a framework is proposed and implemented to evaluate FL algorithms in a more easy and scalable way. This framework is evaluated over a distributed edge-like environment managed by a container orchestration platform (i.e. Kubernetes).},
keywords = {Cloud Computing, Federated Learning, Fog & Edge Computing, Machine Learning},
pubstate = {published},
tppubtype = {article}
}
Federated Learning (FL) is a machine learning paradigm in which many clients cooperatively train a single centralized model while keeping their data private and decentralized. FL is commonly used in edge computing, which involves placing computer workloads (both hardware and software) as close as possible to the edge, where data are created and where actions are occurring, enabling faster response times, greater data privacy, and reduced data transfer costs. However, due to the heterogeneous data distributions/contents of clients, it is non-trivial to accurately evaluate the contributions of local models in global centralized model aggregation. This is an example of a major challenge in FL, commonly known as data imbalance or class imbalance. In general, testing and evaluating FL algorithms can be a very difficult and complex task due to the distributed nature of the systems. In this work, a framework is proposed and implemented to evaluate FL algorithms in a more easy and scalable way. This framework is evaluated over a distributed edge-like environment managed by a container orchestration platform (i.e. Kubernetes).
Lauro Souza Silva, Edison Pignaton Freitas, Juliano Araujo Wickboldt
A P4 Practical Deployment of Priority Queues with Stratum and ONOS Inproceedings
In: Barolli, Leonard (Ed.): 39th IEEE International Conference on Advanced Information Networking and Applications, AINA 2025, Barcelona, Spain, April 9-11, 2025, pp. 274–285, Springer Nature Switzerland, Barcelona, Span, 2025, ISBN: 978-3-031-57916-5.
Abstract Links BibTeX Tags: Military & Tactical Networks Softwarized & Programmable Networks
@inproceedings{conf/aina/SilvaP425,
title = {A P4 Practical Deployment of Priority Queues with Stratum and ONOS},
author = {Lauro Souza Silva and Edison Pignaton Freitas and Juliano Araujo Wickboldt},
editor = {Leonard Barolli},
url = {https://link.springer.com/chapter/10.1007/978-3-031-87775-9_23},
doi = {10.1007/978-3-031-87775-9_23},
isbn = {978-3-031-57916-5},
year = {2025},
date = {2025-04-07},
urldate = {2025-04-07},
booktitle = {39th IEEE International Conference on Advanced Information Networking and Applications, AINA 2025, Barcelona, Spain, April 9-11, 2025},
pages = {274--285},
publisher = {Springer Nature Switzerland},
address = {Barcelona, Span},
abstract = {Modern battlefield networks (BN) must be flexible and robust to handle the lack of infrastructure, diverse devices, and dynamic topologies. A key challenge is ensuring the rapid spread of vital messages through network-centric Command and Control (C2) systems for situational awareness and effective decision-making in multi-domain operations (MDO). This study explores the enhancement of communication on the BN through the integration of P4 and SDN techniques, from a practical perspective. Modifications to the source code of the Stratum switch operating system enabled priority queues in BMv2, with low queue rates that simulate harsh battlefield conditions. The ONOS CLI was enhanced with simple and intuitive prioritization commands, vital for dynamic and responsive network management. Experiments showed significant reductions in packet loss and delay when using the proposed prioritization approach, highlighting the efficacy of the developed tool.},
keywords = {Military & Tactical Networks, Softwarized & Programmable Networks},
pubstate = {published},
tppubtype = {inproceedings}
}
Modern battlefield networks (BN) must be flexible and robust to handle the lack of infrastructure, diverse devices, and dynamic topologies. A key challenge is ensuring the rapid spread of vital messages through network-centric Command and Control (C2) systems for situational awareness and effective decision-making in multi-domain operations (MDO). This study explores the enhancement of communication on the BN through the integration of P4 and SDN techniques, from a practical perspective. Modifications to the source code of the Stratum switch operating system enabled priority queues in BMv2, with low queue rates that simulate harsh battlefield conditions. The ONOS CLI was enhanced with simple and intuitive prioritization commands, vital for dynamic and responsive network management. Experiments showed significant reductions in packet loss and delay when using the proposed prioritization approach, highlighting the efficacy of the developed tool.
Marcos Tomazzoli Leipnitz, Rafael Humann Petry, Fabrício Henrique Rodrigues, Haroldo Rojas Souza Silva, Jaqueline Bitencourt Correia, Karin Becker, Juliano Araujo Wickboldt, Joel Luis Carbonera, João Cesar Netto, Mara Abel
Architecting Digital Twins: From Concept to Reality Journal Article
In: Procedia Computer Science, 256 , pp. 530-537, 2025, ISSN: 1877-0509, (Proceedings: International Conference on ENTERprise Information Systems (CENTERIS)).
Abstract Links BibTeX Tags: Cloud Computing Digital Twin Fog & Edge Computing
@article{conf/centeris/LeipnitzPetwin24,
title = {Architecting Digital Twins: From Concept to Reality},
author = {Marcos Tomazzoli Leipnitz and Rafael Humann Petry and Fabrício Henrique Rodrigues and Haroldo Rojas Souza Silva and Jaqueline Bitencourt Correia and Karin Becker and Juliano Araujo Wickboldt and Joel Luis Carbonera and João Cesar Netto and Mara Abel},
url = {https://www.sciencedirect.com/science/article/pii/S187705092500506X},
doi = {10.1016/j.procs.2025.02.149},
issn = {1877-0509},
year = {2025},
date = {2025-03-14},
urldate = {2025-03-14},
journal = {Procedia Computer Science},
volume = {256},
pages = {530-537},
publisher = {Elsevier},
abstract = {Digital twins (DTs) have emerged as a prominent technology across various industries. However, their development in the Oil and Gas sector faces challenges related to the size and complexity of the domain, which leads to a focus on specific sub-problems like maintenance or optimization with hard, further integrated solutions. These DTs typically lack open architectures since they base the implementations on third-party solutions. This lack of architecture frameworks hinders rapid and scalable DT development and complicates the integration of new assets, services, and data sources. This paper introduces a semantic-oriented DT Framework from the PeTWIN project, which aims to address these challenges by offering (i) a data-centric, data-driven software solution, (ii) an open, modular, and extensible microservices architecture, and (iii) a semantic ontology-based strategy for integration and interoperability. The paper details the key architectural components, behaviours, and interfaces to meet industry needs and provides a proof of concept demonstrating the framework’s capabilities.},
note = {Proceedings: International Conference on ENTERprise Information Systems (CENTERIS)},
keywords = {Cloud Computing, Digital Twin, Fog & Edge Computing},
pubstate = {published},
tppubtype = {article}
}
Digital twins (DTs) have emerged as a prominent technology across various industries. However, their development in the Oil and Gas sector faces challenges related to the size and complexity of the domain, which leads to a focus on specific sub-problems like maintenance or optimization with hard, further integrated solutions. These DTs typically lack open architectures since they base the implementations on third-party solutions. This lack of architecture frameworks hinders rapid and scalable DT development and complicates the integration of new assets, services, and data sources. This paper introduces a semantic-oriented DT Framework from the PeTWIN project, which aims to address these challenges by offering (i) a data-centric, data-driven software solution, (ii) an open, modular, and extensible microservices architecture, and (iii) a semantic ontology-based strategy for integration and interoperability. The paper details the key architectural components, behaviours, and interfaces to meet industry needs and provides a proof of concept demonstrating the framework’s capabilities.
Alexandre Gustavo Wermann, Juliano Araujo Wickboldt
KTWIN: A serverless Kubernetes-based Digital Twin platform Journal Article
In: Computer Networks, 259 , pp. 111095, 2025, ISSN: 1389-1286.
Abstract Links BibTeX Tags: Cloud Computing Digital Twin Fog & Edge Computing
@article{journal/comnet/Wermann25,
title = {KTWIN: A serverless Kubernetes-based Digital Twin platform},
author = {Alexandre Gustavo Wermann and Juliano Araujo Wickboldt},
url = {https://www.sciencedirect.com/science/article/pii/S1389128625000635},
doi = {10.1016/j.comnet.2025.111095},
issn = {1389-1286},
year = {2025},
date = {2025-02-12},
journal = {Computer Networks},
volume = {259},
pages = {111095},
abstract = {Digital Twins (DTs) systems are virtual representations of physical assets allowing organizations to gain insights and improve existing processes. In practice, DTs require proper modeling, coherent development and seamless deployment along cloud and edge landscapes relying on established patterns to reduce operational costs. In this work, we propose KTWIN a Kubernetes-based Serverless Platform for Digital Twins. KTWIN was developed using the state-of-the-art open-source Cloud Native tools, allowing DT operators to easily define models through open standards and configure details of the underlying services and infrastructure. The experiments carried out with the developed prototype show that KTWIN can provide a higher level of abstraction to model and deploy a Digital Twin use case without compromising the solution scalability. The tests performed also show cost savings ranging between 60% and 80% compared to overprovisioned scenarios.},
keywords = {Cloud Computing, Digital Twin, Fog & Edge Computing},
pubstate = {published},
tppubtype = {article}
}
Digital Twins (DTs) systems are virtual representations of physical assets allowing organizations to gain insights and improve existing processes. In practice, DTs require proper modeling, coherent development and seamless deployment along cloud and edge landscapes relying on established patterns to reduce operational costs. In this work, we propose KTWIN a Kubernetes-based Serverless Platform for Digital Twins. KTWIN was developed using the state-of-the-art open-source Cloud Native tools, allowing DT operators to easily define models through open standards and configure details of the underlying services and infrastructure. The experiments carried out with the developed prototype show that KTWIN can provide a higher level of abstraction to model and deploy a Digital Twin use case without compromising the solution scalability. The tests performed also show cost savings ranging between 60% and 80% compared to overprovisioned scenarios.
2024
Carlos André Rodrigues Silva, Lauro Souza Silva, Julio Cesar Santos Anjos, Jorgito Matiuzzi Stocchero, Juliano Araujo Wickboldt, Edison Pignaton Freitas
SDN Supported Network State Aware Command and Control Application Framework Inproceedings
In: Barolli, Leonard (Ed.): 38th IEEE International Conference on Advanced Information Networking and Applications, AINA 2024, Kitakyushu, Japan, April 17-19, 2024, pp. 448–459, Springer Nature Switzerland, 2024, ISBN: 978-3-031-57916-5.
Abstract Links BibTeX Tags: Information-Centric Networking (ICN) Military & Tactical Networks Softwarized & Programmable Networks
@inproceedings{conf/aina/Rodrigues24,
title = {SDN Supported Network State Aware Command and Control Application Framework},
author = {Carlos André Rodrigues Silva and Lauro Souza Silva and Julio Cesar Santos Anjos and Jorgito Matiuzzi Stocchero and Juliano Araujo Wickboldt and Edison Pignaton Freitas},
editor = {Leonard Barolli},
url = {https://link.springer.com/chapter/10.1007/978-3-031-57916-5_38},
doi = {10.1007/978-3-031-57916-5_38},
isbn = {978-3-031-57916-5},
year = {2024},
date = {2024-04-09},
urldate = {2024-04-09},
booktitle = {38th IEEE International Conference on Advanced Information Networking and Applications, AINA 2024, Kitakyushu, Japan, April 17-19, 2024},
pages = {448--459},
publisher = {Springer Nature Switzerland},
abstract = {Command and Control (C2) applications have particular performance requirements depending on their criticality. In a military operation scenario, network parameters frequently vary due to the harsh conditions of this environment. Thus, meeting application requirements is a challenge. This paper proposes a framework to address this challenge by employing a network state-aware approach in which the C2 applications tune the network to meet their requirements using Software Defined Networking orchestration combined with Information-Centric Networking mechanisms. The acquired results provide evidence of the success of the proposed approach in meeting the requirements to accomplish the mission.},
keywords = {Information-Centric Networking (ICN), Military & Tactical Networks, Softwarized & Programmable Networks},
pubstate = {published},
tppubtype = {inproceedings}
}
Command and Control (C2) applications have particular performance requirements depending on their criticality. In a military operation scenario, network parameters frequently vary due to the harsh conditions of this environment. Thus, meeting application requirements is a challenge. This paper proposes a framework to address this challenge by employing a network state-aware approach in which the C2 applications tune the network to meet their requirements using Software Defined Networking orchestration combined with Information-Centric Networking mechanisms. The acquired results provide evidence of the success of the proposed approach in meeting the requirements to accomplish the mission.
João Eduardo Costa Gomes, Ricardo Rodrigues Ehlert, Rodrigo Murillo Boesche, Vinicius Santos Lima, Jorgito Matiuzzi Stocchero, Dante Augusto Couto Barone, Juliano Araujo Wickboldt, Edison Pignaton Freitas, Julio Cesar Santos Anjos, Ricardo Queiroz Araujo Fernandes
Surveying Emerging Network Approaches for Military Command and Control Systems Journal Article
In: ACM Computing Surveys, 56 (6), pp. (143) 1-38, 2024, ISSN: 0360-0300.
Abstract Links BibTeX Tags: Delay-Tolerant Networks (DTN) Information-Centric Networking (ICN) Internet of Things (IoT) Military & Tactical Networks Softwarized & Programmable Networks
@article{journal/ACMSurveys/GomesS2C223,
title = {Surveying Emerging Network Approaches for Military Command and Control Systems},
author = {João Eduardo Costa Gomes and Ricardo Rodrigues Ehlert and Rodrigo Murillo Boesche and Vinicius Santos Lima and Jorgito Matiuzzi Stocchero and Dante Augusto Couto Barone and Juliano Araujo Wickboldt and Edison Pignaton Freitas and Julio Cesar Santos Anjos and Ricardo Queiroz Araujo Fernandes},
url = {https://doi.org/10.1145/3626090},
doi = {10.1145/3626090},
issn = {0360-0300},
year = {2024},
date = {2024-01-22},
urldate = {2023-10-20},
journal = {ACM Computing Surveys},
volume = {56},
number = {6},
pages = {(143) 1-38},
publisher = {Association for Computing Machinery},
address = {New York, NY, USA},
abstract = {This survey paper examines emerging network approaches for military Command and Control (C2) systems. An extensive literature review is provided along the text on network-centric C2 systems. Also, it provides a comprehensive analysis of the paradigm based on C2 concepts, mapping the significant requirements of networked C2 systems to emerging approaches. Likewise, the paper explores ways to simulate networked battle scenarios realistically, leveraging the support of multi-agent systems and network simulations. The article offers a trend analysis of combining network approaches to design innovative solutions and a promising usage of multi-agent systems for realistic simulations. In conclusion, it discusses future implementations emphasizing advanced networking solutions to integrate different technologies and to drive technology boundaries to improve the effectiveness of networked military C2 systems.},
keywords = {Delay-Tolerant Networks (DTN), Information-Centric Networking (ICN), Internet of Things (IoT), Military & Tactical Networks, Softwarized & Programmable Networks},
pubstate = {published},
tppubtype = {article}
}
This survey paper examines emerging network approaches for military Command and Control (C2) systems. An extensive literature review is provided along the text on network-centric C2 systems. Also, it provides a comprehensive analysis of the paradigm based on C2 concepts, mapping the significant requirements of networked C2 systems to emerging approaches. Likewise, the paper explores ways to simulate networked battle scenarios realistically, leveraging the support of multi-agent systems and network simulations. The article offers a trend analysis of combining network approaches to design innovative solutions and a promising usage of multi-agent systems for realistic simulations. In conclusion, it discusses future implementations emphasizing advanced networking solutions to integrate different technologies and to drive technology boundaries to improve the effectiveness of networked military C2 systems.
2023
Dante Augusto Couto Barone, Juliano Araujo Wickboldt, Maria Claudia Reis Cavalcanti, David Fernandes Cruz Moura, Júlio César Cardoso Tesolin, André Demori, Julio Cesar Santos Anjos, Leonardo Silva Carvalho, João Eduardo Costa Gomes, Edison Pignaton Freitas
Integrating a Multi-Agent System Simulator and a Network Emulator to Realistically Exercise Military Network Scenarios Inproceedings
In: 13th International Conference on Simulation and Modeling Methodologies, Technologies and Applications, SIMULTECH 2023, Rome, Italy, July 12-14, 2023, pp. 194-201, INSTICC SciTePress, 2023, ISSN: 2184-2841, (Short paper).
Abstract Links BibTeX Tags: Military & Tactical Networks Simulation
@inproceedings{conf/simultech/BaroneS2C223,
title = {Integrating a Multi-Agent System Simulator and a Network Emulator to Realistically Exercise Military Network Scenarios},
author = {Dante Augusto Couto Barone and Juliano Araujo Wickboldt and Maria Claudia Reis Cavalcanti and David Fernandes Cruz Moura and Júlio César Cardoso Tesolin and André Demori and Julio Cesar Santos Anjos and Leonardo Silva Carvalho and João Eduardo Costa Gomes and Edison Pignaton Freitas},
doi = {10.5220/0012051600003546},
issn = {2184-2841},
year = {2023},
date = {2023-07-12},
booktitle = {13th International Conference on Simulation and Modeling Methodologies, Technologies and Applications, SIMULTECH 2023, Rome, Italy, July 12-14, 2023},
pages = {194-201},
publisher = {SciTePress},
organization = {INSTICC},
abstract = {Modern battlefield scenario are complex environment in which a myriad of equipment and people interact to accomplish a given mission. Most of this interaction is performed by means of wireless communication via Command and Control Systems, which efficiency represent a critical factor the mission success. The assessment of these systems, and their supporting networks, is of primal interest to decide for the best equipment and military maneuver approach. However, there is a lack of tools that provide all the necessary behavioral and network features to perform the task. Observing this fact, this work presents an alternative to simulate a battlefield environment model by means of integrating a network emulator and a Multi-Agent System simulator. By combining both software, it is possible to assess specific characteristics of each area without limiting the model, thus providing the necessary data for an informed military network setup assessment.},
note = {Short paper},
keywords = {Military & Tactical Networks, Simulation},
pubstate = {published},
tppubtype = {inproceedings}
}
Modern battlefield scenario are complex environment in which a myriad of equipment and people interact to accomplish a given mission. Most of this interaction is performed by means of wireless communication via Command and Control Systems, which efficiency represent a critical factor the mission success. The assessment of these systems, and their supporting networks, is of primal interest to decide for the best equipment and military maneuver approach. However, there is a lack of tools that provide all the necessary behavioral and network features to perform the task. Observing this fact, this work presents an alternative to simulate a battlefield environment model by means of integrating a network emulator and a Multi-Agent System simulator. By combining both software, it is possible to assess specific characteristics of each area without limiting the model, thus providing the necessary data for an informed military network setup assessment.
Joberto Sérgio Barbosa Martins, Tereza Cristina Melo Brito Carvalho, Rodrigo Moreira, Cristiano Bonato Both, Adnei Donatti, João H. Corrêa, José Augusto Suruagy Monteiro, Sand Luz Corrêa, Antônio Jorge Gomes Abelém, Moisés Renato Nunes Ribeiro, José Marcos Silva Nogueira, Luiz Claudio Schara Magalhães, Juliano Araujo Wickboldt, Tiago Coelho Ferreto, Ricardo Mello, Rafael Pasquini, Marcos Schwarz, Leobino Nascimento Sampaio, Daniel Fernandes Macedo, José Ferreira Rezende, Kleber Vieira Cardoso, Flávio Oliveira Silva
Enhancing Network Slicing Architectures With Machine Learning, Security, Sustainability and Experimental Networks Integration Journal Article
In: IEEE Access, 11 , pp. 69144-69163, 2023.
Abstract Links BibTeX Tags: Experimental Approach Machine Learning Network Orchestration Network Security Network Virtualization & Slicing
@article{journal/access/MartinsSFI223,
title = {Enhancing Network Slicing Architectures With Machine Learning, Security, Sustainability and Experimental Networks Integration},
author = {Joberto Sérgio Barbosa Martins and Tereza Cristina Melo Brito Carvalho and Rodrigo Moreira and Cristiano Bonato Both and Adnei Donatti and João H. Corrêa and José Augusto Suruagy Monteiro and Sand Luz Corrêa and Antônio Jorge Gomes Abelém and Moisés Renato Nunes Ribeiro and José Marcos Silva Nogueira and Luiz Claudio Schara Magalhães and Juliano Araujo Wickboldt and Tiago Coelho Ferreto and Ricardo Mello and Rafael Pasquini and Marcos Schwarz and Leobino Nascimento Sampaio and Daniel Fernandes Macedo and José Ferreira Rezende and Kleber Vieira Cardoso and Flávio Oliveira Silva},
doi = {10.1109/ACCESS.2023.3292788},
year = {2023},
date = {2023-07-05},
journal = {IEEE Access},
volume = {11},
pages = {69144-69163},
abstract = {Network Slicing (NS) is an essential technique extensively used in 5G networks computing strategies, mobile edge computing, mobile cloud computing, and verticals like the Internet of Vehicles and industrial IoT, among others. NS is foreseen as one of the leading enablers for 6G futuristic and highly demanding applications since it allows the optimization and customization of scarce and disputed resources among dynamic, demanding clients with highly distinct application requirements. Various standardization organizations, like 3GPP’s proposal for new generation networks and state-of-the-art 5G/6G research projects, are proposing new NS architectures. However, new NS architectures have to deal with an extensive range of requirements that inherently result in having NS architecture proposals typically fulfilling the needs of specific sets of domains with commonalities. The Slicing Future Internet Infrastructures (SFI2) architecture proposal explores the gap resulting from the diversity of NS architectures target domains by proposing a new NS reference architecture with a defined focus on integrating experimental networks and enhancing the NS architecture with Machine Learning (ML) native optimizations, energy-efficient slicing, and slicing-tailored security functionalities. The SFI2 architectural main contribution includes the utilization of the slice-as-a-service paradigm for end-to-end orchestration of resources across multi-domains and multi-technology experimental networks. In addition, the SFI2 reference architecture instantiations will enhance the multi-domain and multi-technology integrated experimental network deployment with native ML optimization, energy-efficient aware slicing, and slicing-tailored security functionalities for the practical domain.},
keywords = {Experimental Approach, Machine Learning, Network Orchestration, Network Security, Network Virtualization & Slicing},
pubstate = {published},
tppubtype = {article}
}
Network Slicing (NS) is an essential technique extensively used in 5G networks computing strategies, mobile edge computing, mobile cloud computing, and verticals like the Internet of Vehicles and industrial IoT, among others. NS is foreseen as one of the leading enablers for 6G futuristic and highly demanding applications since it allows the optimization and customization of scarce and disputed resources among dynamic, demanding clients with highly distinct application requirements. Various standardization organizations, like 3GPP’s proposal for new generation networks and state-of-the-art 5G/6G research projects, are proposing new NS architectures. However, new NS architectures have to deal with an extensive range of requirements that inherently result in having NS architecture proposals typically fulfilling the needs of specific sets of domains with commonalities. The Slicing Future Internet Infrastructures (SFI2) architecture proposal explores the gap resulting from the diversity of NS architectures target domains by proposing a new NS reference architecture with a defined focus on integrating experimental networks and enhancing the NS architecture with Machine Learning (ML) native optimizations, energy-efficient slicing, and slicing-tailored security functionalities. The SFI2 architectural main contribution includes the utilization of the slice-as-a-service paradigm for end-to-end orchestration of resources across multi-domains and multi-technology experimental networks. In addition, the SFI2 reference architecture instantiations will enhance the multi-domain and multi-technology integrated experimental network deployment with native ML optimization, energy-efficient aware slicing, and slicing-tailored security functionalities for the practical domain.
Francisco Paiva Knebel, Rafael Trevisan, Givanildo Santana Nascimento, Mara Abel, Juliano Araujo Wickboldt
A study on cloud and edge computing for the implementation of digital twins in the Oil & Gas industries Journal Article
In: Computers & Industrial Engineering, 182 , pp. 109363, 2023, ISSN: 0360-8352.
Abstract Links BibTeX Tags: Cloud Computing Digital Twin Fog & Edge Computing
@article{journal/caie/KnebelGuidelinesOG23,
title = {A study on cloud and edge computing for the implementation of digital twins in the Oil & Gas industries},
author = {Francisco Paiva Knebel and Rafael Trevisan and Givanildo Santana Nascimento and Mara Abel and Juliano Araujo Wickboldt},
url = {https://www.sciencedirect.com/science/article/pii/S036083522300387X},
doi = {10.1016/j.cie.2023.109363},
issn = {0360-8352},
year = {2023},
date = {2023-06-15},
urldate = {2023-06-15},
journal = {Computers & Industrial Engineering},
volume = {182},
pages = {109363},
abstract = {In the Oil and Gas industry, minor accidents can negatively affect people, the environment, and the enterprise on a grand scale. For this type of business, it is crucial to have adequate monitoring and maintenance operational routines. The concept of digital twins has been widely discussed as an industrial solution capable of monitoring objects in real-time, predicting their state, integrity, and safety conditions, and providing user feedback. This analysis can also perform predictive maintenance and estimate efficiency levels. This paper follows a systematic approach and inspects the current state of digital twin adoption by the Oil and Gas industry, along with cloud and edge utilization in both scenarios. The survey was conducted by filtering and selecting articles published in three different queries regarding digital twins in the Oil and Gas industry, cloud and edge usage in digital twins, and cloud and edge usage in the Oil and Gas industry. The selected articles were classified and reviewed to present an overview of the current literature regarding digital twins in the oil and gas industry and evaluate cloud-based solutions for digital twins in this context. This review found that cloud and edge adoption in the Oil and Gas industry was late compared to other industries, mainly because of security and data privacy concerns. Digital twin adoption across all industries is still in its infancy, as most of the current works are theoretical or present partial implementations, which often follow different digital twin definitions. Cloud and edge computing grant access to increased storage and computational capabilities and decouple the necessity of relying on a robust local IT infrastructure, being critical enabling factors for digital twin implementation.},
keywords = {Cloud Computing, Digital Twin, Fog & Edge Computing},
pubstate = {published},
tppubtype = {article}
}
In the Oil and Gas industry, minor accidents can negatively affect people, the environment, and the enterprise on a grand scale. For this type of business, it is crucial to have adequate monitoring and maintenance operational routines. The concept of digital twins has been widely discussed as an industrial solution capable of monitoring objects in real-time, predicting their state, integrity, and safety conditions, and providing user feedback. This analysis can also perform predictive maintenance and estimate efficiency levels. This paper follows a systematic approach and inspects the current state of digital twin adoption by the Oil and Gas industry, along with cloud and edge utilization in both scenarios. The survey was conducted by filtering and selecting articles published in three different queries regarding digital twins in the Oil and Gas industry, cloud and edge usage in digital twins, and cloud and edge usage in the Oil and Gas industry. The selected articles were classified and reviewed to present an overview of the current literature regarding digital twins in the oil and gas industry and evaluate cloud-based solutions for digital twins in this context. This review found that cloud and edge adoption in the Oil and Gas industry was late compared to other industries, mainly because of security and data privacy concerns. Digital twin adoption across all industries is still in its infancy, as most of the current works are theoretical or present partial implementations, which often follow different digital twin definitions. Cloud and edge computing grant access to increased storage and computational capabilities and decouple the necessity of relying on a robust local IT infrastructure, being critical enabling factors for digital twin implementation.
Gabriel Lando, Lucas Augusto Fonseca Schierholt, Mateus Paludo Milesi, Juliano Araujo Wickboldt
Evaluating the performance of open source software implementations of the 5G network core Inproceedings
In: 36th IEEE/IFIP Network Operations and Management Symposium, NOMS 2023, Miami, FL, USA, May 8-12, 2023, pp. 1–7, IEEE, 2023, ISSN: 2374-9709, (Mini conference paper).
Abstract Links BibTeX Tags: 5G Microservices Network Virtualization & Slicing
@inproceedings{conf/noms/Lando5GCore23,
title = {Evaluating the performance of open source software implementations of the 5G network core},
author = {Gabriel Lando and Lucas Augusto Fonseca Schierholt and Mateus Paludo Milesi and Juliano Araujo Wickboldt},
url = {https://ieeexplore.ieee.org/document/10154399},
doi = {10.1109/NOMS56928.2023.10154399},
issn = {2374-9709},
year = {2023},
date = {2023-05-08},
urldate = {2023-05-08},
booktitle = {36th IEEE/IFIP Network Operations and Management Symposium, NOMS 2023, Miami, FL, USA, May 8-12, 2023},
pages = {1--7},
publisher = {IEEE},
abstract = {Open source implementations of software-based network components have become a viable alternative to deploy and operate 5G networks. Although these implementations provide great flexibility, overall network performance becomes dependent not only on the choice of the software stack, but also on its combination with suitable hardware. In this context, performance testing becomes an essential tool to assess the behavior of these software-based mobile networks under different deployment scenarios. Therefore, the goal of this work is to analyze how the different open source implementations of the 5G network core behave for the execution of procedures at scale. To achieve this goal, we propose and apply performance tests on some of the main open source implementations of the 5G network core. We focus on the evaluation of the performance of two essential procedures: (i) the user equipment registration and session establishment and (ii) the streaming of user data over parallel data plane connections. Among the main results obtained, it was possible to observe that the open source implementation free5GC presents better performance regarding data plane bit rates, while Open5GS shows better stability during the registration process of multiple devices.},
note = {Mini conference paper},
keywords = {5G, Microservices, Network Virtualization & Slicing},
pubstate = {published},
tppubtype = {inproceedings}
}
Open source implementations of software-based network components have become a viable alternative to deploy and operate 5G networks. Although these implementations provide great flexibility, overall network performance becomes dependent not only on the choice of the software stack, but also on its combination with suitable hardware. In this context, performance testing becomes an essential tool to assess the behavior of these software-based mobile networks under different deployment scenarios. Therefore, the goal of this work is to analyze how the different open source implementations of the 5G network core behave for the execution of procedures at scale. To achieve this goal, we propose and apply performance tests on some of the main open source implementations of the 5G network core. We focus on the evaluation of the performance of two essential procedures: (i) the user equipment registration and session establishment and (ii) the streaming of user data over parallel data plane connections. Among the main results obtained, it was possible to observe that the open source implementation free5GC presents better performance regarding data plane bit rates, while Open5GS shows better stability during the registration process of multiple devices.
Rafael de Jesus Martins, Juliano Araujo Wickboldt, Lisandro Zambenedetti Granville
Assisted Monitoring and Security Provisioning for 5G Microservices-Based Network Slices with SWEETEN Journal Article
In: Journal of Network and Systems Management (JNSM), 31 (2), pp. 36, 2023, ISSN: 1573-7705.
Abstract Links BibTeX Tags: 5G Cloud Computing Microservices Network Orchestration Network Security Network Virtualization & Slicing
@article{journals/jnsm/Martins5GMS23,
title = {Assisted Monitoring and Security Provisioning for 5G Microservices-Based Network Slices with SWEETEN},
author = {Rafael de Jesus Martins and Juliano Araujo Wickboldt and Lisandro Zambenedetti Granville},
url = {https://link.springer.com/article/10.1007/s10922-023-09728-1},
doi = {10.1007/s10922-023-09728-1},
issn = {1573-7705},
year = {2023},
date = {2023-02-12},
urldate = {2023-02-12},
journal = {Journal of Network and Systems Management (JNSM)},
volume = {31},
number = {2},
pages = {36},
abstract = {5G networks have imposed a drastic shift in how mobile telecommunications must operate. In order to comply with the new requirements, solutions based on network function virtualization (NFV) and network slicing must be carried out. Regarding NFV in particular, the trend towards pulverizing the monolithic software in a microservices-based one carries network management challenges to operators. The deployment and integration of one or more network management software with the managed services is as important as it is delicate, as stringent requirements of 5G applications must be respected. In this paper, we propose SWEETEN as a solution for automating the deployment and transparently integrating network management solutions from different management disciplines, in this case, monitoring and security. Demonstrating its usability through a intelligent healthcare use case, SWEETEN is shown to transparently provide monitoring and security solutions for a complete network slice, enabling compliance with privacy requirements through minimal low-level interventions from the network slice tenant. The results show how SWEETEN integration of monitoring and security disciplines can assist users in guaranteeing the correct operation of their deployments regardless of the underlying software solutions used.},
keywords = {5G, Cloud Computing, Microservices, Network Orchestration, Network Security, Network Virtualization & Slicing},
pubstate = {published},
tppubtype = {article}
}
5G networks have imposed a drastic shift in how mobile telecommunications must operate. In order to comply with the new requirements, solutions based on network function virtualization (NFV) and network slicing must be carried out. Regarding NFV in particular, the trend towards pulverizing the monolithic software in a microservices-based one carries network management challenges to operators. The deployment and integration of one or more network management software with the managed services is as important as it is delicate, as stringent requirements of 5G applications must be respected. In this paper, we propose SWEETEN as a solution for automating the deployment and transparently integrating network management solutions from different management disciplines, in this case, monitoring and security. Demonstrating its usability through a intelligent healthcare use case, SWEETEN is shown to transparently provide monitoring and security solutions for a complete network slice, enabling compliance with privacy requirements through minimal low-level interventions from the network slice tenant. The results show how SWEETEN integration of monitoring and security disciplines can assist users in guaranteeing the correct operation of their deployments regardless of the underlying software solutions used.
Dennis Giovane Balreira, Thiago Lopes Trugillo Silveira, Juliano Araujo Wickboldt
Investigating the impact of adopting Python and C languages for introductory engineering programming courses Journal Article
In: Computer Applications in Engineering Education, 31 (1), pp. 47-62, 2023, ISSN: 1099-0542.
Abstract Links BibTeX Tags: Education Programming
@article{journal/cae/Balreira22,
title = {Investigating the impact of adopting Python and C languages for introductory engineering programming courses},
author = {Dennis Giovane Balreira and Thiago Lopes Trugillo Silveira and Juliano Araujo Wickboldt},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/cae.22570},
doi = {10.1002/cae.22570},
issn = {1099-0542},
year = {2023},
date = {2023-01-01},
urldate = {2022-09-21},
journal = {Computer Applications in Engineering Education},
volume = {31},
number = {1},
pages = {47-62},
abstract = {Programming is one of the most fundamental initial skills for engineering students. Institutions that offer engineering courses have the challenge of deciding how to deliver this subject since it requires unique thinking from students. This paper addresses the impact of adopting C and Python programming languages in introductory programming courses for engineering students. A case study was conducted in the university's introductory programming course, analyzing student data. This approach divides the students into two groups according to the programming language: C and Python. Data were gathered and analyzed about their learning experiences through questionnaires, assignment scores, and students' questions posted in the class online forums. The experiment was repeated in two consecutive semesters. The main results favor Python regarding learning confidence, motivation, and general programming design decisions while favoring C for the easiness of learning data structures. This study may be helpful for institutions considering designing a new introductory programming course or redesigning existing ones.},
keywords = {Education, Programming},
pubstate = {published},
tppubtype = {article}
}
Programming is one of the most fundamental initial skills for engineering students. Institutions that offer engineering courses have the challenge of deciding how to deliver this subject since it requires unique thinking from students. This paper addresses the impact of adopting C and Python programming languages in introductory programming courses for engineering students. A case study was conducted in the university's introductory programming course, analyzing student data. This approach divides the students into two groups according to the programming language: C and Python. Data were gathered and analyzed about their learning experiences through questionnaires, assignment scores, and students' questions posted in the class online forums. The experiment was repeated in two consecutive semesters. The main results favor Python regarding learning confidence, motivation, and general programming design decisions while favoring C for the easiness of learning data structures. This study may be helpful for institutions considering designing a new introductory programming course or redesigning existing ones.
2022
Laura Bragante Corssac, Juliano Araujo Wickboldt
A Digital Twin-based Smart Home: A Proof of Concept Study Unpublished
arXiv Preprint, 2022, (Computer Science > Distributed, Parallel, and Cluster Computing (cs.DC)).
Abstract Links BibTeX Tags: Digital Twin Smart Homes
@unpublished{corssac2022smart,
title = {A Digital Twin-based Smart Home: A Proof of Concept Study},
author = {Laura Bragante Corssac and Juliano Araujo Wickboldt},
url = {https://arxiv.org/abs/2212.14238},
year = {2022},
date = {2022-12-29},
urldate = {2022-12-29},
abstract = {A Digital Twin is a virtual system that can fully describe a physical one. It constantly receives data from its counterpart's sensors, consults external sources, and obtains manual inputs from its stakeholders. The DT uses all this information to make various computations, such as analyses, predictions, and simulations, and then possibly sends the results back to the physical system. Domotics, or Smart Home Technologies, brings intelligence and comfort to a house by automating some of its functions. Although the research on both themes is vast, there are few implementations of Smart Homes based on Digital Twin technologies, and this work aims to prove that residences can also benefit from this concept. We implement two different use cases showing that a two-way connection between a home and its virtual counterpart can provide its owners with analyses and simulation-based automation. The first study case allows the user to visualize their home appliances' past and present state concerning their energy consumption. Based on heating simulations, the second determines the best time to turn on a heater to increase the home's thermal comfort and reduce energy usage.},
howpublished = {arXiv Preprint},
note = {Computer Science > Distributed, Parallel, and Cluster Computing (cs.DC)},
keywords = {Digital Twin, Smart Homes},
pubstate = {published},
tppubtype = {unpublished}
}
A Digital Twin is a virtual system that can fully describe a physical one. It constantly receives data from its counterpart's sensors, consults external sources, and obtains manual inputs from its stakeholders. The DT uses all this information to make various computations, such as analyses, predictions, and simulations, and then possibly sends the results back to the physical system. Domotics, or Smart Home Technologies, brings intelligence and comfort to a house by automating some of its functions. Although the research on both themes is vast, there are few implementations of Smart Homes based on Digital Twin technologies, and this work aims to prove that residences can also benefit from this concept. We implement two different use cases showing that a two-way connection between a home and its virtual counterpart can provide its owners with analyses and simulation-based automation. The first study case allows the user to visualize their home appliances' past and present state concerning their energy consumption. Based on heating simulations, the second determines the best time to turn on a heater to increase the home's thermal comfort and reduce energy usage.
Fernando Ferreira Remde, Juliano Araujo Wickboldt
Analyzing Federated Learning Performance in Distributed Edge Scenarios Inproceedings
In: 27º Workshop de Gerência e Operação de Redes e Serviços, WGRS 2022, Virtual Conference, May 23-27, 2022, pp. 155-168, SBC, 2022, ISSN: 2595-2722.
Abstract Links BibTeX Tags: Federated Learning Fog & Edge Computing Machine Learning
@inproceedings{conf/wgrs/Remde22,
title = {Analyzing Federated Learning Performance in Distributed Edge Scenarios},
author = {Fernando Ferreira Remde and Juliano Araujo Wickboldt},
url = {https://www.inf.ufrgs.br/~jwickboldt/wp-content/uploads/Analyzing-Federated-Learning-Performance-in-Distributed-Edge-Scenarios-WGRS-2022-Camera-Ready.pdf
https://sol.sbc.org.br/index.php/wgrs/article/view/21484},
doi = {10.5753/wgrs.2022.223574},
issn = {2595-2722},
year = {2022},
date = {2022-05-23},
urldate = {2022-05-23},
booktitle = {27º Workshop de Gerência e Operação de Redes e Serviços, WGRS 2022, Virtual Conference, May 23-27, 2022},
pages = {155-168},
publisher = {SBC},
abstract = {Federated Learning is a machine learning paradigm where many clients cooperatively train a single centralized model while keeping their data private and decentralized. This novel paradigm imposes many challenges, such as dealing with data that is not independent and identically distributed, spread among multiple clients that are not synchronized and may have limited computing power. These clients are often edge devices such as smartphones and sensors, which form a system that is heterogeneous, highly distributed by nature and difficult to manage. This work proposes an architecture for running federated learning experiments in a distributed edge-like environment. Based on this architecture, a set of experiments are conducted to analyze how the overall system performance is affected by different configuration parameters and varied number of connected clients.},
keywords = {Federated Learning, Fog & Edge Computing, Machine Learning},
pubstate = {published},
tppubtype = {inproceedings}
}
Federated Learning is a machine learning paradigm where many clients cooperatively train a single centralized model while keeping their data private and decentralized. This novel paradigm imposes many challenges, such as dealing with data that is not independent and identically distributed, spread among multiple clients that are not synchronized and may have limited computing power. These clients are often edge devices such as smartphones and sensors, which form a system that is heterogeneous, highly distributed by nature and difficult to manage. This work proposes an architecture for running federated learning experiments in a distributed edge-like environment. Based on this architecture, a set of experiments are conducted to analyze how the overall system performance is affected by different configuration parameters and varied number of connected clients.
Rafael Antonio Ventura Trevisan, Francisco Paiva Knebel, Juliano Araujo Wickboldt, Mara Abel
Aquisição de Dados Escalável e Ciente da Aplicação para Gêmeos Digitais Inproceedings
In: 27º Workshop de Gerência e Operação de Redes e Serviços, WGRS 2022, Virtual Conference, May 23-27, 2022, pp. 57-70, SBC, 2022, ISSN: 2595-2722, (In portuguese, Best paper award).
Abstract Links BibTeX Tags: Digital Twin Internet of Things (IoT)
@inproceedings{conf/wgrs/Trevisan22,
title = {Aquisição de Dados Escalável e Ciente da Aplicação para Gêmeos Digitais},
author = {Rafael Antonio Ventura Trevisan and Francisco Paiva Knebel and Juliano Araujo Wickboldt and Mara Abel},
url = {https://www.inf.ufrgs.br/~jwickboldt/wp-content/uploads/Aquisicao-de-Dados-Escalavel-e-Ciente-da-Aplicacao-para-Gemeos-Digitais-WGRS-2022-Camera-Ready.pdf
https://sol.sbc.org.br/index.php/wgrs/article/view/21477},
doi = {10.5753/wgrs.2022.223478},
issn = {2595-2722},
year = {2022},
date = {2022-05-23},
urldate = {2022-05-23},
booktitle = {27º Workshop de Gerência e Operação de Redes e Serviços, WGRS 2022, Virtual Conference, May 23-27, 2022},
pages = {57-70},
publisher = {SBC},
abstract = {Digital Twin is the name given to a type of system that has full integration between a physical part and a digital part updated in real time. In general, they are large-scale systems with intense flow of data between their parts (physical and digital). To perform data acquisition in this type of system, protocols such as MQTT are commonly used. This work recognizes the limitations of this protocol when using high traffic conditions and explores alternatives to increase data flow while minimizing message loss and resource usage. For this, the native cluster mode of MQTT broker implementations is used, adding a component to the system architecture which we call "Cluster Manager". This component was developed with the objective of monitoring the health of a cluster of brokers and adjusting the composition of the cluster to the message flow. The results of the implementation of this component helped to determine loss margins and latencies in sending critical messages, using different strategies to scale the cluster under representative workloads of Digital Twins applications. It has also been determined that using very sensitive parameters to scale the system causes more nodes than necessary to be instantiated and resources wasted.},
note = {In portuguese, Best paper award},
keywords = {Digital Twin, Internet of Things (IoT)},
pubstate = {published},
tppubtype = {inproceedings}
}
Digital Twin is the name given to a type of system that has full integration between a physical part and a digital part updated in real time. In general, they are large-scale systems with intense flow of data between their parts (physical and digital). To perform data acquisition in this type of system, protocols such as MQTT are commonly used. This work recognizes the limitations of this protocol when using high traffic conditions and explores alternatives to increase data flow while minimizing message loss and resource usage. For this, the native cluster mode of MQTT broker implementations is used, adding a component to the system architecture which we call "Cluster Manager". This component was developed with the objective of monitoring the health of a cluster of brokers and adjusting the composition of the cluster to the message flow. The results of the implementation of this component helped to determine loss margins and latencies in sending critical messages, using different strategies to scale the cluster under representative workloads of Digital Twins applications. It has also been determined that using very sensitive parameters to scale the system causes more nodes than necessary to be instantiated and resources wasted.
Guilherme Rotth Zibetti, Juliano Araujo Wickboldt, Edison Pignaton de Freitas
Context-Aware Environment Monitoring to Support LPWAN-based Battlefield Applications Journal Article
In: Computer Communications, 189 , pp. 18–27, 2022, ISSN: 0140-3664.
Abstract Links BibTeX Tags: Context-Awareness Internet of Things (IoT) Low-Power Wide-Area Networks (LPWAN) Military & Tactical Networks Network Resilience
@article{journal/comcom/Zibetti22,
title = {Context-Aware Environment Monitoring to Support LPWAN-based Battlefield Applications},
author = {Guilherme Rotth Zibetti and Juliano Araujo Wickboldt and Edison Pignaton de Freitas},
url = {https://www.sciencedirect.com/science/article/pii/S0140366422000639},
doi = {10.1016/j.comcom.2022.02.020},
issn = {0140-3664},
year = {2022},
date = {2022-05-01},
urldate = {2021-08-06},
journal = {Computer Communications},
volume = {189},
pages = {18--27},
abstract = {The use of IoT-related technologies is growing in several areas. Applications of environmental monitoring, logistics, smart cities are examples of applications that benefit from advances in IoT. In the military context, IoT applications can support the decision-making process by delivering information collected directly from the battlefield to Command, Control, Communications, Computers, Intelligence, Surveillance and Reconnaissance (C4ISR) systems. Taking the benefit of the installed IoT network in the battlefield, the use of the data collected by the IoT nodes is a way to improve resiliency and increase the survivability of networks, as well as to optimize the use of available resources. Towards improving the communication network present on the battlefield, this work presents a context-aware environmental monitoring system that uses real-time battlefield information to increase military networks’ resilience and survivability. The proposed approach is validated by a proof-of-concept experiment. The obtained results show that the implementation of this system can improve the communication process even when the network is exposed to unfavorable climatic factors.},
keywords = {Context-Awareness, Internet of Things (IoT), Low-Power Wide-Area Networks (LPWAN), Military & Tactical Networks, Network Resilience},
pubstate = {published},
tppubtype = {article}
}
The use of IoT-related technologies is growing in several areas. Applications of environmental monitoring, logistics, smart cities are examples of applications that benefit from advances in IoT. In the military context, IoT applications can support the decision-making process by delivering information collected directly from the battlefield to Command, Control, Communications, Computers, Intelligence, Surveillance and Reconnaissance (C4ISR) systems. Taking the benefit of the installed IoT network in the battlefield, the use of the data collected by the IoT nodes is a way to improve resiliency and increase the survivability of networks, as well as to optimize the use of available resources. Towards improving the communication network present on the battlefield, this work presents a context-aware environmental monitoring system that uses real-time battlefield information to increase military networks’ resilience and survivability. The proposed approach is validated by a proof-of-concept experiment. The obtained results show that the implementation of this system can improve the communication process even when the network is exposed to unfavorable climatic factors.
2021
Francisco Paiva Knebel, Juliano Araujo Wickboldt, Edison Pignaton de Freitas
A Cloud-Fog Computing Architecture for Real-Time Digital Twins Unpublished
arXiv Preprint, 2021, (Computer Science > Networking and Internet Architecture (cs.NI)).
Abstract Links BibTeX Tags: Cloud Computing Digital Twin Fog & Edge Computing
@unpublished{knebel2020cloud,
title = {A Cloud-Fog Computing Architecture for Real-Time Digital Twins},
author = {Francisco Paiva Knebel and Juliano Araujo Wickboldt and Edison Pignaton de Freitas},
url = {https://arxiv.org/abs/2012.06118},
year = {2021},
date = {2021-05-07},
urldate = {2021-05-07},
abstract = {Digital Twin systems are designed as two interconnected mirrored spaces, one real and one virtual, each reflecting the other, sharing information, and making predictions based on analysis and simulations. The correct behavior of a real-time Digital Twin depends not only on the logical results of computation but also on the timing constraints. To cope with the large amounts of data that need to be stored and analyzed, modern large scale Digital Twin deployments often rely on cloud-based architectures. A significant portion of the overall response time of a Digital Twin is spent on moving data from the edge to the cloud. Therefore, implementing Digital Twins using cloud-fog architectures emerges as an alternative to bring computing power closer to the edge, reducing latency and allowing faster response times. This paper studies how suitable the use of a cloud-fog architecture is to handle the real-time requirements of Digital Twins. Based on a realistic implementation and deployment of Digital Twin software components, it is possible to conclude that the distribution of Digital Twins in a fog computing setup can reduce response times, meeting its real-time application requirements.},
howpublished = {arXiv Preprint},
note = {Computer Science > Networking and Internet Architecture (cs.NI)},
keywords = {Cloud Computing, Digital Twin, Fog & Edge Computing},
pubstate = {published},
tppubtype = {unpublished}
}
Digital Twin systems are designed as two interconnected mirrored spaces, one real and one virtual, each reflecting the other, sharing information, and making predictions based on analysis and simulations. The correct behavior of a real-time Digital Twin depends not only on the logical results of computation but also on the timing constraints. To cope with the large amounts of data that need to be stored and analyzed, modern large scale Digital Twin deployments often rely on cloud-based architectures. A significant portion of the overall response time of a Digital Twin is spent on moving data from the edge to the cloud. Therefore, implementing Digital Twins using cloud-fog architectures emerges as an alternative to bring computing power closer to the edge, reducing latency and allowing faster response times. This paper studies how suitable the use of a cloud-fog architecture is to handle the real-time requirements of Digital Twins. Based on a realistic implementation and deployment of Digital Twin software components, it is possible to conclude that the distribution of Digital Twins in a fog computing setup can reduce response times, meeting its real-time application requirements.
2020
Rafael Antonio Ventura Trevisan, Francisco Paiva Knebel, Juliano Araujo Wickboldt
Uma Avaliação do uso de MQTT para a Implementação de Digital Twins Inproceedings
In: 18ª Escola Regional de Redes de Computadores, ERRC 2020, Virtual Conference, November 25-27, 2020, pp. 1-7, SBC, 2020, (in portuguese).
Abstract Links BibTeX Tags: Digital Twin Internet of Things (IoT)
@inproceedings{conf/errc/Trevisan20,
title = {Uma Avaliação do uso de MQTT para a Implementação de Digital Twins},
author = {Rafael Antonio Ventura Trevisan and Francisco Paiva Knebel and Juliano Araujo Wickboldt},
url = {https://www.inf.ufrgs.br/~jwickboldt/wp-content/uploads/ERRC2020_Uma_Avalia__o_do_uso_de_MQTT_para_a_Implementa___ICQ3pD9.pdf},
doi = {10.5753/errc.2020.15187},
year = {2020},
date = {2020-11-25},
booktitle = {18ª Escola Regional de Redes de Computadores, ERRC 2020, Virtual Conference, November 25-27, 2020},
pages = {1-7},
publisher = {SBC},
abstract = {O conceito de Digital Twin tem se tornado cada dia mais importante como um método para monitorar elementos e prevenir possíveis defeitos. Uma das tecnologias que pode ser usada para implementar a comunicação de dados desse software é o MQTT. Este trabalho avaliou o uso dessa tecnologia nesse contexto e constatou que existe uma limitação do broker na capacidade de envio de mensagens, que pode ser contornada através da utilização de múltiplos brokers em paralelo. Também foi examinado o comportamento dos brokers em situações onde eles estão centralizados em uma máquina com mais recursos computacionais e quando eles estão distribuídos em máquinas exclusivas porém com menos recursos. Nessas situações constatamos que os brokers apresentam um comportamento mais estável quando seus serviços estão centralizados.},
note = {in portuguese},
keywords = {Digital Twin, Internet of Things (IoT)},
pubstate = {published},
tppubtype = {inproceedings}
}
O conceito de Digital Twin tem se tornado cada dia mais importante como um método para monitorar elementos e prevenir possíveis defeitos. Uma das tecnologias que pode ser usada para implementar a comunicação de dados desse software é o MQTT. Este trabalho avaliou o uso dessa tecnologia nesse contexto e constatou que existe uma limitação do broker na capacidade de envio de mensagens, que pode ser contornada através da utilização de múltiplos brokers em paralelo. Também foi examinado o comportamento dos brokers em situações onde eles estão centralizados em uma máquina com mais recursos computacionais e quando eles estão distribuídos em máquinas exclusivas porém com menos recursos. Nessas situações constatamos que os brokers apresentam um comportamento mais estável quando seus serviços estão centralizados.
Rafael de Jesus Martins, Cristiano Bonato Both, Juliano Araujo Wickboldt, Lisandro Zambenedetti Granville
Virtual Network Functions Migration Cost: from Identification to Prediction Journal Article
In: Elsevier Computer Networks, 181 , pp. 107429, 2020, ISSN: 1389-1286.
Abstract Links BibTeX Tags: Container Management & Orchestration Network Orchestration Network Virtualization & Slicing
@article{journal/cn/Martins20,
title = {Virtual Network Functions Migration Cost: from Identification to Prediction},
author = {Rafael de Jesus Martins and Cristiano Bonato Both and Juliano Araujo Wickboldt and Lisandro Zambenedetti Granville},
url = {http://www.sciencedirect.com/science/article/pii/S138912862031118X},
doi = {10.1016/j.comnet.2020.107429},
issn = {1389-1286},
year = {2020},
date = {2020-11-09},
urldate = {2020-11-09},
journal = {Elsevier Computer Networks},
volume = {181},
pages = {107429},
abstract = {The advent of the function virtualization concept, especially that of network functions, leads to important benefits for future networks. Although the orchestration of virtualized functions presents gains for network operators and clients alike, the overhead for moving functions has not been thoroughly explored so far, especially considering functions virtualized by using container technologies. In this work, we investigate orchestration costs associated with the migration of containerized virtual functions. To this end, we first perform a systematic literature review on state-of-the-art virtual function migration costs, electing time and data transferred as so. We then use a well-known container platform (LXD) to perform several orchestration experiments in a controlled environment. By analyzing the container migration process in smaller complementary steps, and designing experiments to evaluate them individually, a pattern for migration costs is observed. Linear regression is then used to derive a prediction model for the necessary time and data transferring for performing a container migration. To assess the predictor’s accuracy, we present a cloud computing use case where the predictor is deployed. Results indicate that predictions can be accurate within reasonable range, and therefore orchestration algorithms may be improved by accounting for similar prediction models when determining the migration of one or more virtualized functions.},
keywords = {Container Management & Orchestration, Network Orchestration, Network Virtualization & Slicing},
pubstate = {published},
tppubtype = {article}
}
The advent of the function virtualization concept, especially that of network functions, leads to important benefits for future networks. Although the orchestration of virtualized functions presents gains for network operators and clients alike, the overhead for moving functions has not been thoroughly explored so far, especially considering functions virtualized by using container technologies. In this work, we investigate orchestration costs associated with the migration of containerized virtual functions. To this end, we first perform a systematic literature review on state-of-the-art virtual function migration costs, electing time and data transferred as so. We then use a well-known container platform (LXD) to perform several orchestration experiments in a controlled environment. By analyzing the container migration process in smaller complementary steps, and designing experiments to evaluate them individually, a pattern for migration costs is observed. Linear regression is then used to derive a prediction model for the necessary time and data transferring for performing a container migration. To assess the predictor’s accuracy, we present a cloud computing use case where the predictor is deployed. Results indicate that predictions can be accurate within reasonable range, and therefore orchestration algorithms may be improved by accounting for similar prediction models when determining the migration of one or more virtualized functions.
Henrique Cesar Carvalho de Resende, Matias Artur Klafke Schimuneck, Cristiano Bonato Both, Juliano Araujo Wickboldt, Johann M. Márquez-Barja
COPA: Experimenter-level Container Orchestration for Networking Testbeds Journal Article
In: IEEE Access, 8 , pp. 201781-201798, 2020, ISSN: 2169-3536.
Abstract Links BibTeX Tags: 5G Cloud Computing Container Management & Orchestration Fog & Edge Computing Network Orchestration Network Virtualization & Slicing
@article{journal/access/Resende20,
title = {COPA: Experimenter-level Container Orchestration for Networking Testbeds},
author = {Henrique Cesar Carvalho de Resende and Matias Artur Klafke Schimuneck and Cristiano Bonato Both and Juliano Araujo Wickboldt and Johann M. Márquez-Barja},
url = {https://ieeexplore.ieee.org/document/9247110},
doi = {10.1109/ACCESS.2020.3035619},
issn = {2169-3536},
year = {2020},
date = {2020-11-03},
urldate = {2020-11-03},
journal = {IEEE Access},
volume = {8},
pages = {201781-201798},
abstract = {As Cloud Computing (CC) branched areas such as Multi-access Edge Computing (MEC) and Fog computing are still on growing research interest. The creation of new tools to improve quality and speed the experimentation in such areas is a general interest. In this article, we propose COPA, an experimenter-level container orchestration tool for networking testbeds. This tool provides a friendly interface for the experimenter test container orchestration algorithms which can start, stop, copy, and even migrate a container from one host to another. COPA also includes network/resources monitoring to feed the experimenter’s orchestration algorithm so that it can make decisions based on real-time environment information. Furthermore, the experimenter can automatize the experiment scenario setup and deployment by pre-configuring in COPA. This tool helps the experimenter in testing different scenarios and quickly changing experiment parameters. Considering these features, COPA aims to provide an experimentation architecture to deploy and test container orchestration algorithms. Furthermore, we provide a case study explaining how COPA can be a key tool in the MEC and Network Function Virtualization (NFV) experimentation environments. This tool was already deployed in Federated Union of Telecommunications Research Facilities for an EU-Brazil Open Laboratory (FUTEBOL) testbeds as part of the control framework and was well validated by the project reviewers and partners.},
keywords = {5G, Cloud Computing, Container Management & Orchestration, Fog & Edge Computing, Network Orchestration, Network Virtualization & Slicing},
pubstate = {published},
tppubtype = {article}
}
As Cloud Computing (CC) branched areas such as Multi-access Edge Computing (MEC) and Fog computing are still on growing research interest. The creation of new tools to improve quality and speed the experimentation in such areas is a general interest. In this article, we propose COPA, an experimenter-level container orchestration tool for networking testbeds. This tool provides a friendly interface for the experimenter test container orchestration algorithms which can start, stop, copy, and even migrate a container from one host to another. COPA also includes network/resources monitoring to feed the experimenter’s orchestration algorithm so that it can make decisions based on real-time environment information. Furthermore, the experimenter can automatize the experiment scenario setup and deployment by pre-configuring in COPA. This tool helps the experimenter in testing different scenarios and quickly changing experiment parameters. Considering these features, COPA aims to provide an experimentation architecture to deploy and test container orchestration algorithms. Furthermore, we provide a case study explaining how COPA can be a key tool in the MEC and Network Function Virtualization (NFV) experimentation environments. This tool was already deployed in Federated Union of Telecommunications Research Facilities for an EU-Brazil Open Laboratory (FUTEBOL) testbeds as part of the control framework and was well validated by the project reviewers and partners.
Rafael de Jesus Martins, Juliano Araujo Wickboldt, Lisandro Zambenedetti Granville
SWEETEN: Automated Network Management Provisioning for 5G Microservices-Based Virtual Network Functions Inproceedings
In: 16th International Conference on Network and Service Management, CNSM 2020, Virtual Conference, November 2-6, 2020, pp. 1-9, International Federation for Information Processing (IFIP), Virtual Conference, 2020, ISBN: 978-3-903176-31-7.
Abstract Links BibTeX Tags: 5G Cloud Computing Microservices Network Orchestration Network Virtualization & Slicing
@inproceedings{conf/cnsm/Martins20,
title = {SWEETEN: Automated Network Management Provisioning for 5G Microservices-Based Virtual Network Functions},
author = {Rafael de Jesus Martins and Juliano Araujo Wickboldt and Lisandro Zambenedetti Granville},
url = {http://dl.ifip.org/db/conf/cnsm/cnsm2020/1570662948.pdf},
isbn = {978-3-903176-31-7},
year = {2020},
date = {2020-11-02},
booktitle = {16th International Conference on Network and Service Management, CNSM 2020, Virtual Conference, November 2-6, 2020},
pages = {1-9},
publisher = {International Federation for Information Processing (IFIP)},
address = { Virtual Conference},
abstract = {Forthcoming 5G systems promise a myriad of new and improved applications, relying on Network Functions Virtualization (NFV) to realize some of 5G's stringent requirements. To guarantee that these requirements are met, network monitoring and management must be deployed and fine-tuned according each application's specificity. As Virtual Network Functions (VNFs) adhere to the microservice paradigm, picking and configuring the right tools is not a trivial task for users. In this paper, we present SWEETEN, a system that assists user to operate a 5G network with the appropriate management tools for the job, in a transparent manner to the user. By enriching their function stack with high-level annotation of the management features they desire, users can easily deploy an augmented stack with both network and management functions. A prototype is presented and evaluated in a dynamic Cloud Radio Access Network (C-RAN) split case study. The evaluation confirms that SWEETEN can assist users in effortlessly deploying complex management solutions, while incurring in acceptable deployment time overhead and negligible computational overhead for throughout the functions life-cycle.},
keywords = {5G, Cloud Computing, Microservices, Network Orchestration, Network Virtualization & Slicing},
pubstate = {published},
tppubtype = {inproceedings}
}
Forthcoming 5G systems promise a myriad of new and improved applications, relying on Network Functions Virtualization (NFV) to realize some of 5G's stringent requirements. To guarantee that these requirements are met, network monitoring and management must be deployed and fine-tuned according each application's specificity. As Virtual Network Functions (VNFs) adhere to the microservice paradigm, picking and configuring the right tools is not a trivial task for users. In this paper, we present SWEETEN, a system that assists user to operate a 5G network with the appropriate management tools for the job, in a transparent manner to the user. By enriching their function stack with high-level annotation of the management features they desire, users can easily deploy an augmented stack with both network and management functions. A prototype is presented and evaluated in a dynamic Cloud Radio Access Network (C-RAN) split case study. The evaluation confirms that SWEETEN can assist users in effortlessly deploying complex management solutions, while incurring in acceptable deployment time overhead and negligible computational overhead for throughout the functions life-cycle.
Rafael de Jesus Martins, Rodolfo Bruno Hecht, Ederson Ribas Machado, Jéferson Campos Nobre, Juliano Araujo Wickboldt, Lisandro Zambenedetti Granville
Micro-service Based Network Management for Distributed Applications Inproceedings
In: 34th IEEE International Conference on Advanced Information Networking and Applications, AINA 2020, Caserta, Italy, April 15-17, 2020, pp. 922–933, Springer International Publishing, 2020, ISBN: 978-3-030-44041-1.
Abstract Links BibTeX Tags: Cloud Computing Microservices Network Orchestration Network Virtualization & Slicing
@inproceedings{conf/aina/Martins20,
title = {Micro-service Based Network Management for Distributed Applications},
author = {Rafael de Jesus Martins and Rodolfo Bruno Hecht and Ederson Ribas Machado and Jéferson Campos Nobre and Juliano Araujo Wickboldt and Lisandro Zambenedetti Granville},
url = {https://doi.org/10.1007/978-3-030-44041-1_80},
doi = {10.1007/978-3-030-44041-1_80},
isbn = {978-3-030-44041-1},
year = {2020},
date = {2020-04-15},
booktitle = {34th IEEE International Conference on Advanced Information Networking and Applications, AINA 2020, Caserta, Italy, April 15-17, 2020},
pages = {922--933},
publisher = {Springer International Publishing},
abstract = {Computer networks and their services have become increasingly dynamic with the introduction of concepts such as Network Functions Virtualization (NFV) and cloud computing. To understand and configure such a complex network to their best interests, users must use several management tools that they are not necessarily familiar with. In this paper, we present an architecture that provides network management for distributed applications as easy-to-use micro-services. Our solution is based on container virtualization technologies to offer, to the user, the maximum benefit through minimal cost. We present a proof-of-concept for our architecture through a use case. Our results show that acceptable overhead is added when deploying a solution for a distributed application, and negligible overhead is added by the management tools when the user application is under heavy stress.},
keywords = {Cloud Computing, Microservices, Network Orchestration, Network Virtualization & Slicing},
pubstate = {published},
tppubtype = {inproceedings}
}
Computer networks and their services have become increasingly dynamic with the introduction of concepts such as Network Functions Virtualization (NFV) and cloud computing. To understand and configure such a complex network to their best interests, users must use several management tools that they are not necessarily familiar with. In this paper, we present an architecture that provides network management for distributed applications as easy-to-use micro-services. Our solution is based on container virtualization technologies to offer, to the user, the maximum benefit through minimal cost. We present a proof-of-concept for our architecture through a use case. Our results show that acceptable overhead is added when deploying a solution for a distributed application, and negligible overhead is added by the management tools when the user application is under heavy stress.
Ariel Galante Dalla-Costa, Lucas Bondan, Juliano Araujo Wickboldt, Cristiano Bonato Both, Lisandro Zambenedetti Granville
Orchestra: A Customizable Split-Aware NFV Orchestrator for Dynamic C-RAN Journal Article
In: IEEE Journal on Selected Areas in Communications, 38 (6), pp. 1014–1024, 2020, ISSN: 0733-8716.
Abstract Links BibTeX Tags: 5G Cloud Computing Cloud Radio Access Networks (C-RAN) Network Orchestration Network Virtualization & Slicing Wireless Networks
@article{journals/jsac/DallaCosta20,
title = {Orchestra: A Customizable Split-Aware NFV Orchestrator for Dynamic C-RAN},
author = {Ariel Galante Dalla-Costa and Lucas Bondan and Juliano Araujo Wickboldt and Cristiano Bonato Both and Lisandro Zambenedetti Granville},
url = {https://ieeexplore.ieee.org/document/9060959},
doi = {10.1109/JSAC.2020.2986689},
issn = {0733-8716},
year = {2020},
date = {2020-04-08},
journal = {IEEE Journal on Selected Areas in Communications},
volume = {38},
number = {6},
pages = {1014--1024},
abstract = {Dynamic Cloud Radio Access Networks (C-RAN) is an emerging wireless architecture that splits radio functions in a hierarchical cloud-based infrastructure. In Dynamic C-RAN, wireless functionalities can be divided into smaller components and distributed along with a hierarchical cloud infrastructure. Network Functions Virtualization (NFV) concepts have been recently investigated to facilitate managementrelated operations of these wireless functionalities. Despite the advances in providing flexible NFV orchestration for Virtualized Network Functions (VNF)s, there is still a lack of solutions aware of VNFs internal composition, a key characteristic of split virtualized radio functions. In this article, we advance NFV orchestration in a Dynamic C-RAN scenario presenting Orchestra, a split-aware NFVO for Dynamic C-RAN with support to customizable orchestration algorithms for different radio function splits. Orchestra is validated through instantiates and migrates VNFCs following the decisions of personalized orchestration algorithms, with a petty impact in the VNFC’s deployment and migration time.},
keywords = {5G, Cloud Computing, Cloud Radio Access Networks (C-RAN), Network Orchestration, Network Virtualization & Slicing, Wireless Networks},
pubstate = {published},
tppubtype = {article}
}
Dynamic Cloud Radio Access Networks (C-RAN) is an emerging wireless architecture that splits radio functions in a hierarchical cloud-based infrastructure. In Dynamic C-RAN, wireless functionalities can be divided into smaller components and distributed along with a hierarchical cloud infrastructure. Network Functions Virtualization (NFV) concepts have been recently investigated to facilitate managementrelated operations of these wireless functionalities. Despite the advances in providing flexible NFV orchestration for Virtualized Network Functions (VNF)s, there is still a lack of solutions aware of VNFs internal composition, a key characteristic of split virtualized radio functions. In this article, we advance NFV orchestration in a Dynamic C-RAN scenario presenting Orchestra, a split-aware NFVO for Dynamic C-RAN with support to customizable orchestration algorithms for different radio function splits. Orchestra is validated through instantiates and migrates VNFCs following the decisions of personalized orchestration algorithms, with a petty impact in the VNFC’s deployment and migration time.
Gustavo Bassil Heimovski, Rogério Correa Turchetti, Juliano Araujo Wickboldt, Lisandro Zambenedetti Granville, Elias Procópio Duarte Jr
FT-Aurora: A highly available IaaS cloud manager based on replication Journal Article
In: Elsevier Computer Networks, 168 , pp. 107041, 2020, ISSN: 1389-1286.
Abstract Links BibTeX Tags: Cloud Computing Fault Tolerance High Availability Infrastructure as a Service (IaaS)
@article{journal/cn/Heimovski20,
title = {FT-Aurora: A highly available IaaS cloud manager based on replication},
author = {Gustavo Bassil Heimovski and Rogério Correa Turchetti and Juliano Araujo Wickboldt and Lisandro Zambenedetti Granville and Elias Procópio Duarte Jr},
url = {http://www.sciencedirect.com/science/article/pii/S138912861831346X},
doi = {10.1016/j.comnet.2019.107041},
issn = {1389-1286},
year = {2020},
date = {2020-02-26},
journal = {Elsevier Computer Networks},
volume = {168},
pages = {107041},
abstract = {In this work we describe FT-Aurora, a highly available IaaS (Infrastructure as a Service) cloud manager that allows cloud resources to be accessed even if the manager itself crashes. FT-Aurora provides flexible and efficient resource management by supporting network programmability. FT-Aurora is based on clusters of cloud managers running on multiple datacenters. After a manager crashes, the corresponding resources remain accessible from any other manager in the cluster. A cluster consists of a group of managers that use fine-grained multi-master replication to share information. Replicated data and resources include both management information stored at the Aurora database, and information used to keep virtual machine images and processes. Replication and monitoring the multiple Aurora instances are available as services that can be easily activated through a GUI button. Experimental results are presented for both the performance and robustness of FT-Aurora.},
keywords = {Cloud Computing, Fault Tolerance, High Availability, Infrastructure as a Service (IaaS)},
pubstate = {published},
tppubtype = {article}
}
In this work we describe FT-Aurora, a highly available IaaS (Infrastructure as a Service) cloud manager that allows cloud resources to be accessed even if the manager itself crashes. FT-Aurora provides flexible and efficient resource management by supporting network programmability. FT-Aurora is based on clusters of cloud managers running on multiple datacenters. After a manager crashes, the corresponding resources remain accessible from any other manager in the cluster. A cluster consists of a group of managers that use fine-grained multi-master replication to share information. Replicated data and resources include both management information stored at the Aurora database, and information used to keep virtual machine images and processes. Replication and monitoring the multiple Aurora instances are available as services that can be easily activated through a GUI button. Experimental results are presented for both the performance and robustness of FT-Aurora.
2019
Cristiano Bonato Both, Rafael Silva Guimarães, Frank Slyne, Juliano Araujo Wickboldt, Magnos Martinello, Cristina Klippel Dominicini, Rafael de Jesus Martins, Yi Zhang, Diego Cardoso, Rodolfo da Silva Villaça, Isabella de Albuquerque Ceravolo, Reza Nejabati, Johann M. Márquez-Barja, Marco Ruffini, Luiz A. DaSilva
FUTEBOL Control Framework: Enabling Experimentation in Convergent Optical, Wireless, and Cloud Infrastructures Journal Article
In: IEEE Communications Magazine, 57 (10), pp. 56–62, 2019, ISSN: 0163-6804.
Abstract Links BibTeX Tags: 5G Cloud Computing Convergent Networks Experimental Approach Optical Networks Wireless Networks
@article{DBLP:journals/cm/BothGSWMDMZCVCN19,
title = {FUTEBOL Control Framework: Enabling Experimentation in Convergent Optical, Wireless, and Cloud Infrastructures},
author = {Cristiano Bonato Both and Rafael Silva Guimarães and Frank Slyne and Juliano Araujo Wickboldt and Magnos Martinello and Cristina Klippel Dominicini and Rafael de Jesus Martins and Yi Zhang and Diego Cardoso and Rodolfo da Silva Villaça and Isabella de Albuquerque Ceravolo and Reza Nejabati and Johann M. Márquez-Barja and Marco Ruffini and Luiz A. DaSilva},
url = {https://doi.org/10.1109/MCOM.001.1900270},
doi = {10.1109/MCOM.001.1900270},
issn = {0163-6804},
year = {2019},
date = {2019-01-01},
journal = {IEEE Communications Magazine},
volume = {57},
number = {10},
pages = {56--62},
abstract = {Large-scale testing and evaluation of network solutions are complex and typically involve multiple domains (e.g., optical, wireless, and cloud). The FUTEBOL project has deployed geographically distributed testbeds in Brazil and Europe that enable the experimentation and validation of new cross-domain network solutions. In this article, we introduce a control framework that allows experimenters to slice, reserve, and orchestrate optical, wireless, and cloud resources in a coordinated manner. We illustrate the features of our control framework and evaluate it through an experiment involving resource orchestration and automatic service scaling across multiple domains.},
keywords = {5G, Cloud Computing, Convergent Networks, Experimental Approach, Optical Networks, Wireless Networks},
pubstate = {published},
tppubtype = {article}
}
Large-scale testing and evaluation of network solutions are complex and typically involve multiple domains (e.g., optical, wireless, and cloud). The FUTEBOL project has deployed geographically distributed testbeds in Brazil and Europe that enable the experimentation and validation of new cross-domain network solutions. In this article, we introduce a control framework that allows experimenters to slice, reserve, and orchestrate optical, wireless, and cloud resources in a coordinated manner. We illustrate the features of our control framework and evaluate it through an experiment involving resource orchestration and automatic service scaling across multiple domains.
Rafael de Jesus Martins, Luis Augusto Dias Knob, Eduardo Germano da Silva, Juliano Araujo Wickboldt, Alberto Egon Schaeffer-Filho, Lisandro Zambenedetti Granville
Specialized CSIRT for Incident Response Management in Smart Grids Journal Article
In: Journal of Network and Systems Management (JNSM), 27 (1), pp. 269–285, 2019, ISSN: 1064-7570.
Abstract Links BibTeX Tags: CSIRT Incident Management SCADA Smart Grids
@article{DBLP:journals/jnsm/MartinsKSWFG19,
title = {Specialized CSIRT for Incident Response Management in Smart Grids},
author = {Rafael de Jesus Martins and Luis Augusto Dias Knob and Eduardo Germano da Silva and Juliano Araujo Wickboldt and Alberto Egon Schaeffer-Filho and Lisandro Zambenedetti Granville},
url = {https://doi.org/10.1007/s10922-018-9458-z},
doi = {10.1007/s10922-018-9458-z},
issn = {1064-7570},
year = {2019},
date = {2019-01-01},
journal = {Journal of Network and Systems Management (JNSM)},
volume = {27},
number = {1},
pages = {269--285},
abstract = {Power grids are undergoing a major modernization process, which is transforming them into Smart Grids. In such cyber-physical systems, a security incident may cause catastrophic consequences. Unfortunately, the number of reported incidents in power grids has been increasing in the last years. In this article we advocate that the adoption of Computer Security Incident Response Teams (CSIRTs) is necessary for the proper management of security incidents in Smart Grids. CSIRTs for Smart Grids must cover different parts of the grid, thus consisting of specialized response teams for handling incidents not only on the physical infrastructure, but also on the Smart Grid equipment and on the IT infrastructure. We thus propose an incident classification to assist the implementation of CSIRTs for Smart Grids, considering the specific concerns of the different response teams. We evaluate attack classifications available in the literature and review a well-known database of Smart Grid security incidents.},
keywords = {CSIRT, Incident Management, SCADA, Smart Grids},
pubstate = {published},
tppubtype = {article}
}
Power grids are undergoing a major modernization process, which is transforming them into Smart Grids. In such cyber-physical systems, a security incident may cause catastrophic consequences. Unfortunately, the number of reported incidents in power grids has been increasing in the last years. In this article we advocate that the adoption of Computer Security Incident Response Teams (CSIRTs) is necessary for the proper management of security incidents in Smart Grids. CSIRTs for Smart Grids must cover different parts of the grid, thus consisting of specialized response teams for handling incidents not only on the physical infrastructure, but also on the Smart Grid equipment and on the IT infrastructure. We thus propose an incident classification to assist the implementation of CSIRTs for Smart Grids, considering the specific concerns of the different response teams. We evaluate attack classifications available in the literature and review a well-known database of Smart Grid security incidents.
Marcos Carvalho, Vinicius Fonseca e Silva, Erik de Britto e Silva, Daniel Fernandes Macedo, Henrique Cesar Carvalho de Resende, Johann M. Márquez-Barja, Cristiano Bonato Both, Augusto Zanella Bardini, Juliano Araujo Wickboldt
QoE-Based Video Orchestration for 4G Networks Inproceedings
In: 30th IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2019, Istanbul, Turkey, September 8-11, 2019, pp. 1–6, IEEE, 2019, ISSN: 2166-9589.
Abstract Links BibTeX Tags: Device-to-Device (D2D) Network Orchestration Quality of Experience (QoE)
@inproceedings{DBLP:conf/pimrc/CarvalhoSSMRMBB19,
title = {QoE-Based Video Orchestration for 4G Networks},
author = {Marcos Carvalho and Vinicius Fonseca e Silva and Erik de Britto e Silva and Daniel Fernandes Macedo and Henrique Cesar Carvalho de Resende and Johann M. Márquez-Barja and Cristiano Bonato Both and Augusto Zanella Bardini and Juliano Araujo Wickboldt},
url = {https://doi.org/10.1109/PIMRC.2019.8904329},
doi = {10.1109/PIMRC.2019.8904329},
issn = {2166-9589},
year = {2019},
date = {2019-01-01},
booktitle = {30th IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2019, Istanbul, Turkey, September 8-11, 2019},
pages = {1--6},
publisher = {IEEE},
abstract = {Quality of Experience (QoE) should be the driver for network orchestration in 4G networks. At the same time, the network must be able to cope with high bandwidth requirements from applications such as video streaming, while dealing with a large number of users. This paper proposes a network orchestrator that adjusts network parameters to improve QoE of video streaming. The orchestrator uses Device-to-Device (D2D) communication to improve user's QoE, also reducing the demand on 4G network. The use of D2D is triggered by a machine learning engine. Experiments made in a physical testbed show an improvement on the mean horizontal video resolution from 768 to 1280 pixels, as well as a decrease of around 90% at the impact on the QoE, considering the number of video resolution changes. Finally, the demand on the network backhaul is decreased by around 38%.},
keywords = {Device-to-Device (D2D), Network Orchestration, Quality of Experience (QoE)},
pubstate = {published},
tppubtype = {inproceedings}
}
Quality of Experience (QoE) should be the driver for network orchestration in 4G networks. At the same time, the network must be able to cope with high bandwidth requirements from applications such as video streaming, while dealing with a large number of users. This paper proposes a network orchestrator that adjusts network parameters to improve QoE of video streaming. The orchestrator uses Device-to-Device (D2D) communication to improve user's QoE, also reducing the demand on 4G network. The use of D2D is triggered by a machine learning engine. Experiments made in a physical testbed show an improvement on the mean horizontal video resolution from 768 to 1280 pixels, as well as a decrease of around 90% at the impact on the QoE, considering the number of video resolution changes. Finally, the demand on the network backhaul is decreased by around 38%.
Juliano Araujo Wickboldt, Cristiano Bonato Both
FUTEBOL: Habilitando Pesquisa Experimental em Redes da Próxima Geração Journal Article
In: Computação Brasil, 40 , pp. 23–27, 2019.
Abstract Links BibTeX Tags: 5G Cloud Computing Convergent Networks Experimental Approach Optical Networks Wireless Networks
@article{journal/cb/Wickboldt19,
title = {FUTEBOL: Habilitando Pesquisa Experimental em Redes da Próxima Geração},
author = {Juliano Araujo Wickboldt and Cristiano Bonato Both},
url = {https://www.inf.ufrgs.br/~jwickboldt/wp-content/uploads/CB-2019-FUTEBOL-Habilitando-Pesquisa-Experimental-em-Redes-da-Próxima-Geração.pdf},
year = {2019},
date = {2019-01-01},
journal = {Computação Brasil},
volume = {40},
pages = {23--27},
abstract = {O projeto futebol desenvolve e implanta infraestruturas de pesquisa, bem como as ferramentas de controle associadas para permitir experimentação.},
keywords = {5G, Cloud Computing, Convergent Networks, Experimental Approach, Optical Networks, Wireless Networks},
pubstate = {published},
tppubtype = {article}
}
O projeto futebol desenvolve e implanta infraestruturas de pesquisa, bem como as ferramentas de controle associadas para permitir experimentação.
Daniel Fernandes Macedo, Luis Henrique Cantelli Reis, José Marcos Silva Nogueira, Cristiano Bonato Both, Luiz A. DaSilva, Juliano Araujo Wickboldt, Johann M. Márquez-Barja
FUTEBOL - Orchestrated Optical/Wireless Experiments Across Brazil and Europe Inproceedings
In: 10th Workshop de Pesquisa Experimental da Internet do Futuro, WPEIF 2019, Gramado, Brazil, May 5-6, 2019, pp. 48–55, SBC, 2019, ISSN: 2595-2692.
Abstract Links BibTeX Tags: 5G Cloud Computing Convergent Networks Experimental Approach Optical Networks Wireless Networks
@inproceedings{conf/wpeif/Macedo19,
title = {FUTEBOL - Orchestrated Optical/Wireless Experiments Across Brazil and Europe},
author = {Daniel Fernandes Macedo and Luis Henrique Cantelli Reis and José Marcos Silva Nogueira and Cristiano Bonato Both and Luiz A. DaSilva and Juliano Araujo Wickboldt and Johann M. Márquez-Barja},
url = {https://sol.sbc.org.br/index.php/wpeif/article/view/7698},
issn = {2595-2692},
year = {2019},
date = {2019-01-01},
booktitle = {10th Workshop de Pesquisa Experimental da Internet do Futuro, WPEIF 2019, Gramado, Brazil, May 5-6, 2019},
pages = {48--55},
publisher = {SBC},
abstract = {This paper presents the experimentation facilities provided by the European Union-Brazil project" FUTEBOL-Federated Union of Telecommunications Research Facilities for an EU-Brazil Open Laboratory", from the point of view of the experimenter. The FUTEBOL testbeds to provide experimentation capabilities for optical-wireless experimentation, which is crucial for the development of 5G technologies. The main offering of FUTEBOL is, thus, to be able to set up an experiment accross many network domains–be it optical, wireless, packet or cloud–, and to orchestrate them using tools such as COPA and ABNO. Further, FUTEBOL provides a set of services that can be instantiated with very little effort, in order to compose complex 5G experiments in reduced time.},
keywords = {5G, Cloud Computing, Convergent Networks, Experimental Approach, Optical Networks, Wireless Networks},
pubstate = {published},
tppubtype = {inproceedings}
}
This paper presents the experimentation facilities provided by the European Union-Brazil project" FUTEBOL-Federated Union of Telecommunications Research Facilities for an EU-Brazil Open Laboratory", from the point of view of the experimenter. The FUTEBOL testbeds to provide experimentation capabilities for optical-wireless experimentation, which is crucial for the development of 5G technologies. The main offering of FUTEBOL is, thus, to be able to set up an experiment accross many network domains–be it optical, wireless, packet or cloud–, and to orchestrate them using tools such as COPA and ABNO. Further, FUTEBOL provides a set of services that can be instantiated with very little effort, in order to compose complex 5G experiments in reduced time.
Maicon Kist, Juliano Araujo Wickboldt, Lisandro Zambenedetti Granville, Juergen Rochol, Luiz A. DaSilva, Cristiano Bonato Both
Flexible fine-grained baseband processing with network functions virtualization: Benefits and impacts Journal Article
In: Elsevier Computer Networks, 151 , pp. 158–165, 2019, ISSN: 1389-1286.
Abstract Links BibTeX Tags: 5G Cloud Radio Access Networks (C-RAN) Network Virtualization & Slicing Software-Defined Radio (SDR) Wireless Networks
@article{journal/cn/Kist19,
title = {Flexible fine-grained baseband processing with network functions virtualization: Benefits and impacts},
author = {Maicon Kist and Juliano Araujo Wickboldt and Lisandro Zambenedetti Granville and Juergen Rochol and Luiz A. DaSilva and Cristiano Bonato Both},
url = {http://www.sciencedirect.com/science/article/pii/S1389128619301033},
doi = {10.1016/j.comnet.2019.01.021},
issn = {1389-1286},
year = {2019},
date = {2019-01-01},
urldate = {2019-01-01},
journal = {Elsevier Computer Networks},
volume = {151},
pages = {158--165},
abstract = {The increasing demand for wireless broadband connectivity is leading mobile network operators towards new means to expand their infrastructures efficiently and without increasing the cost of operation. Network Functions Virtualization (NFV) is a step towards virtualization-based, low-cost flexible and adaptable networking services. In the context of centralized baseband architectures, virtualization is already employed to run baseband processing units as software on top of conventional data center hardware. However, current virtualization solutions consider atomic virtualization, i.e., single virtual machines implementing all baseband functionalities. In this article, we propose the fine-grained virtualization of baseband processing to achieve a more flexible distribution of the processing workload in centralized architectures. We also evaluate the benefits of our approach in terms of: (i) The bandwidth requirements for each fine-grained distribution option, (ii) the latency experienced by mobile users for each fine-grained distribution option, and (iii) the total CPU usage of each fine-grained baseband processing function.},
keywords = {5G, Cloud Radio Access Networks (C-RAN), Network Virtualization & Slicing, Software-Defined Radio (SDR), Wireless Networks},
pubstate = {published},
tppubtype = {article}
}
The increasing demand for wireless broadband connectivity is leading mobile network operators towards new means to expand their infrastructures efficiently and without increasing the cost of operation. Network Functions Virtualization (NFV) is a step towards virtualization-based, low-cost flexible and adaptable networking services. In the context of centralized baseband architectures, virtualization is already employed to run baseband processing units as software on top of conventional data center hardware. However, current virtualization solutions consider atomic virtualization, i.e., single virtual machines implementing all baseband functionalities. In this article, we propose the fine-grained virtualization of baseband processing to achieve a more flexible distribution of the processing workload in centralized architectures. We also evaluate the benefits of our approach in terms of: (i) The bandwidth requirements for each fine-grained distribution option, (ii) the latency experienced by mobile users for each fine-grained distribution option, and (iii) the total CPU usage of each fine-grained baseband processing function.
2018
Juliano Araujo Wickboldt, Mauricio Quatrin Guerreiro, Lisandro Zambenedetti Granville, Luciano Paschoal Gaspary, Marcos Felipe Schwarz, Chin Guok, Vangelis Chaniotakis, Andrew Lake, John Macauley
MEICAN: Simplifying DCN Life-Cycle Management from End-User and Operator Perspectives in Inter-Domain Environments Journal Article
In: IEEE Communications Magazine, 56 (1), pp. 179–187, 2018, ISSN: 0163-6804.
Abstract Links BibTeX Tags: Dynamic Circuit Networks (DCN) Inter-domain Networking
@article{DBLP:journals/cm/WickboldtGGGSGC18,
title = {MEICAN: Simplifying DCN Life-Cycle Management from End-User and Operator Perspectives in Inter-Domain Environments},
author = {Juliano Araujo Wickboldt and Mauricio Quatrin Guerreiro and Lisandro Zambenedetti Granville and Luciano Paschoal Gaspary and Marcos Felipe Schwarz and Chin Guok and Vangelis Chaniotakis and Andrew Lake and John Macauley},
url = {https://doi.org/10.1109/MCOM.2017.1601205},
doi = {10.1109/MCOM.2017.1601205},
issn = {0163-6804},
year = {2018},
date = {2018-01-01},
journal = {IEEE Communications Magazine},
volume = {56},
number = {1},
pages = {179--187},
abstract = {National research and education networks (NRENs), such as ESnet, GéANT, and RNP, currently promote the employment of dynamic circuit networks (DCNs) to improve scientific communications beyond the capabilities of today's Internet. In spite of their alleged benefits to materialize user-initiated, ad hoc dedicated end-to-end circuits for high-demanding applications, DCNs also pose important challenges. Two examples are dealing with the end-user's lack of ability or willingness to understand low-level technicalities of virtual circuit establishment, and accommodating NRENs' local policies throughout the life-cycle of DCN. In this article, we seek to improve the usability of DCN services with a focus on the inexperienced end-user and the skilled network operator alike. We introduce MEICAN, a platform to manage the life-cycle of DCN from definition to provisioning of virtual circuits. We also present a case study of inter-domain circuit reservation with mixed manual and automated policy checking, and discuss lessons learned, relevant challenges, and open issues still to be overcome.},
keywords = {Dynamic Circuit Networks (DCN), Inter-domain Networking},
pubstate = {published},
tppubtype = {article}
}
National research and education networks (NRENs), such as ESnet, GéANT, and RNP, currently promote the employment of dynamic circuit networks (DCNs) to improve scientific communications beyond the capabilities of today's Internet. In spite of their alleged benefits to materialize user-initiated, ad hoc dedicated end-to-end circuits for high-demanding applications, DCNs also pose important challenges. Two examples are dealing with the end-user's lack of ability or willingness to understand low-level technicalities of virtual circuit establishment, and accommodating NRENs' local policies throughout the life-cycle of DCN. In this article, we seek to improve the usability of DCN services with a focus on the inexperienced end-user and the skilled network operator alike. We introduce MEICAN, a platform to manage the life-cycle of DCN from definition to provisioning of virtual circuits. We also present a case study of inter-domain circuit reservation with mixed manual and automated policy checking, and discuss lessons learned, relevant challenges, and open issues still to be overcome.
Marcelo Antonio Marotta, Leonardo Roveda Faganello, Maicon Kist, Lucas Bondan, Juliano Araujo Wickboldt, Lisandro Zambenedetti Granville, Juergen Rochol, Cristiano Bonato Both
Integrating dynamic spectrum access and device-to-device via cloud radio access networks and cognitive radio Journal Article
In: Wiley International Journal of Communication Systems, 31 (11), pp. 1–11, 2018, ISSN: 1099-1131.
Abstract Links BibTeX Tags: Cloud Radio Access Networks (C-RAN) Cognitive Radio Device-to-Device (D2D) Dynamic Spectrum Access
@article{DBLP:journals/ijcomsys/MarottaFKBWGRB18,
title = {Integrating dynamic spectrum access and device-to-device via cloud radio access networks and cognitive radio},
author = {Marcelo Antonio Marotta and Leonardo Roveda Faganello and Maicon Kist and Lucas Bondan and Juliano Araujo Wickboldt and Lisandro Zambenedetti Granville and Juergen Rochol and Cristiano Bonato Both},
url = {https://doi.org/10.1002/dac.3698},
doi = {10.1002/dac.3698},
issn = {1099-1131},
year = {2018},
date = {2018-01-01},
journal = {Wiley International Journal of Communication Systems},
volume = {31},
number = {11},
pages = {1--11},
abstract = {Dynamic Spectrum Access (DSA) can be integrated with Device‐to‐Device (D2D) communications to enable the exploitation of unused spectrum portions and to address the spectrum scarcity problem. Spectrum management mechanisms integrated into DSA and D2D allow low‐power communications between User Equipments without interfering with licensed primary users. However, these mechanisms tend to be energy and processing intensive, being unfeasible to implement in User Equipments with strict battery and processing limitations. On the other hand, Cloud Radio Access Networks already leverage the virtually unlimited computing capacity of clouds for baseband processing functions. Thus, in this article, we propose the Cognitive Radio Device‐to‐Device (CRD2D) approach aiming to offload spectrum management functionality to the cloud taking advantage of Cloud Radio Access Networks architecture to support the integration of DSA and D2D.},
keywords = {Cloud Radio Access Networks (C-RAN), Cognitive Radio, Device-to-Device (D2D), Dynamic Spectrum Access},
pubstate = {published},
tppubtype = {article}
}
Dynamic Spectrum Access (DSA) can be integrated with Device‐to‐Device (D2D) communications to enable the exploitation of unused spectrum portions and to address the spectrum scarcity problem. Spectrum management mechanisms integrated into DSA and D2D allow low‐power communications between User Equipments without interfering with licensed primary users. However, these mechanisms tend to be energy and processing intensive, being unfeasible to implement in User Equipments with strict battery and processing limitations. On the other hand, Cloud Radio Access Networks already leverage the virtually unlimited computing capacity of clouds for baseband processing functions. Thus, in this article, we propose the Cognitive Radio Device‐to‐Device (CRD2D) approach aiming to offload spectrum management functionality to the cloud taking advantage of Cloud Radio Access Networks architecture to support the integration of DSA and D2D.
Paulo Marques, Alexandre Pereira do Carmo, Valerio Frascolla, Carlos Filipe Moreira e Silva, Emanuel Dário Rodrigues Sena, Raphael Braga, João Francisco Nunes Pinheiro, Carlos Alberto Astudillo Trujillo, Tiago Pedroso da Cruz de Andrade, Eduardo de Souza Gama, Luiz Fernando Bittencourt, Leandro Aparecido Villas, Edmundo Roberto Mauro Madeira, Nelson Luis Saldanha da Fonseca, Cristiano Bonato Both, Gabriel Lando, Matias Artur Klafke Schimuneck, Juliano Araujo Wickboldt, Ana Paula Ventura Trevisan, Rafael de Jesus Martins, Raquel Frizera Vassallo, Felippe Mendonça de Queiroz, Rodolfo Picoreti, Roberta Lima Gomes, Cristina Klippel Dominicini, Victor Manuel Garcia Martinez, Rafael Silva Guimarães, Rodolfo da Silva Villaça, Magnos Martinello, Moisés Renato Nunes Ribeiro, Daniel Fernandes Macedo, Vinicius Fonseca e Silva, Julio Cesar Tadeu Guimarães, Carlos Colman Meixner, Reza Nejabati, Dimitra Simeonidou, Yi Zhang, Frank Slyne, Pedro Alvarez, Diarmuid Collins, Marco Ruffini, Luiz A. DaSilva, Johann M. Márquez-Barja
Optical and wireless network convergence in 5G systems - an experimental approach Inproceedings
In: 23rd IEEE International Workshop on Computer Aided Modeling and Design of Communication Links and Networks, CAMAD 2018, Barcelona, Spain, September 17-19, 2018, pp. 1–5, IEEE, 2018, ISSN: 2378-4873.
Abstract Links BibTeX Tags: 5G Cloud Computing Convergent Networks Experimental Approach Optical Networks Wireless Networks
@inproceedings{DBLP:conf/camad/0002CFSSBPAAGBV18,
title = {Optical and wireless network convergence in 5G systems - an experimental approach},
author = {Paulo Marques and Alexandre Pereira do Carmo and Valerio Frascolla and Carlos Filipe Moreira e Silva and Emanuel Dário Rodrigues Sena and Raphael Braga and João Francisco Nunes Pinheiro and Carlos Alberto Astudillo Trujillo and Tiago Pedroso da Cruz de Andrade and Eduardo de Souza Gama and Luiz Fernando Bittencourt and Leandro Aparecido Villas and Edmundo Roberto Mauro Madeira and Nelson Luis Saldanha da Fonseca and Cristiano Bonato Both and Gabriel Lando and Matias Artur Klafke Schimuneck and Juliano Araujo Wickboldt and Ana Paula Ventura Trevisan and Rafael de Jesus Martins and Raquel Frizera Vassallo and Felippe Mendonça de Queiroz and Rodolfo Picoreti and Roberta Lima Gomes and Cristina Klippel Dominicini and Victor Manuel Garcia Martinez and Rafael Silva Guimarães and Rodolfo da Silva Villaça and Magnos Martinello and Moisés Renato Nunes Ribeiro and Daniel Fernandes Macedo and Vinicius Fonseca e Silva and Julio Cesar Tadeu Guimarães and Carlos Colman Meixner and Reza Nejabati and Dimitra Simeonidou and Yi Zhang and Frank Slyne and Pedro Alvarez and Diarmuid Collins and Marco Ruffini and Luiz A. DaSilva and Johann M. Márquez-Barja},
url = {https://doi.org/10.1109/CAMAD.2018.8514972},
doi = {10.1109/CAMAD.2018.8514972},
issn = {2378-4873},
year = {2018},
date = {2018-01-01},
booktitle = {23rd IEEE International Workshop on Computer Aided Modeling and Design of Communication Links and Networks, CAMAD 2018, Barcelona, Spain, September 17-19, 2018},
pages = {1--5},
publisher = {IEEE},
abstract = {This paper provides a description of key results stemming from experiments conducted at the wireless/optical boundary. The main aim is to show the
advantages of a converged optical/wireless network deployment, which uses very recent technologies like SDN, Virtualization, fog and cloud computing, and Radio-over fiber. The results are mainly taken out of an international collaborative research project called FUTEBOL (Federated Union of Telecommunications Research Facilities for an EU Brazil Open Laboratory).},
keywords = {5G, Cloud Computing, Convergent Networks, Experimental Approach, Optical Networks, Wireless Networks},
pubstate = {published},
tppubtype = {inproceedings}
}
This paper provides a description of key results stemming from experiments conducted at the wireless/optical boundary. The main aim is to show the
advantages of a converged optical/wireless network deployment, which uses very recent technologies like SDN, Virtualization, fog and cloud computing, and Radio-over fiber. The results are mainly taken out of an international collaborative research project called FUTEBOL (Federated Union of Telecommunications Research Facilities for an EU Brazil Open Laboratory).
advantages of a converged optical/wireless network deployment, which uses very recent technologies like SDN, Virtualization, fog and cloud computing, and Radio-over fiber. The results are mainly taken out of an international collaborative research project called FUTEBOL (Federated Union of Telecommunications Research Facilities for an EU Brazil Open Laboratory).
Ana Paula Ventura Trevisan, Gabriel Lando, Ian Fischer Schilling, Henrique Cesar Carvalho de Resende, Juliano Araujo Wickboldt, Matias Artur Klafke Schimuneck
Estudo e Avaliação Sobre os Efeitos da Comunicação com Radio-over-Fiber em Redes IEEE 802.15.4 Inproceedings
In: 16ª Escola Regional de Redes de Computadores, ERRC 2018, Pelotas, Brazil, November 5-9, 2018, SBC, 2018, (In portuguese).
Abstract Links BibTeX Tags: Convergent Networks Experimental Approach Internet of Things (IoT) Optical Networks Radio-over-Fiber Wireless Networks
@inproceedings{conf/errc/Trevisan18,
title = {Estudo e Avaliação Sobre os Efeitos da Comunicação com Radio-over-Fiber em Redes IEEE 802.15.4},
author = {Ana Paula Ventura Trevisan and Gabriel Lando and Ian Fischer Schilling and Henrique Cesar Carvalho de Resende and Juliano Araujo Wickboldt and Matias Artur Klafke Schimuneck},
url = {https://www.inf.ufrgs.br/~jwickboldt/wp-content/uploads/ERRC-2018-Estudo-e-Avaliação-Sobre-os-Efeitos-da-Comunicação-com-Radio-over-Fiber-em-Redes-IEEE-802.15.4.pdf},
year = {2018},
date = {2018-01-01},
booktitle = {16ª Escola Regional de Redes de Computadores, ERRC 2018, Pelotas, Brazil, November 5-9, 2018},
publisher = {SBC},
abstract = {The growing demand for new network technologies is mainly related to the new Internet of Things products market, which is increasingly present in our daily lives. The application of the Radio over Fiber technology is the great bet for the cellular networks’ next generation development, which should undergo massive insertion of Internet of Things devices in the next years. The benefits derived from the use of optical fiber guarantee the fundamental support to the communication of new applications, besides reducing the costs involved in the implementation and maintenance of a traditional network. In this paper, we compare the transmission made through Radio over Fiber structures with a fully wireless transmission, in relation to packet loss using the IEEE 802.15.4 communication protocol for the Internet of Things.},
note = {In portuguese},
keywords = {Convergent Networks, Experimental Approach, Internet of Things (IoT), Optical Networks, Radio-over-Fiber, Wireless Networks},
pubstate = {published},
tppubtype = {inproceedings}
}
The growing demand for new network technologies is mainly related to the new Internet of Things products market, which is increasingly present in our daily lives. The application of the Radio over Fiber technology is the great bet for the cellular networks’ next generation development, which should undergo massive insertion of Internet of Things devices in the next years. The benefits derived from the use of optical fiber guarantee the fundamental support to the communication of new applications, besides reducing the costs involved in the implementation and maintenance of a traditional network. In this paper, we compare the transmission made through Radio over Fiber structures with a fully wireless transmission, in relation to packet loss using the IEEE 802.15.4 communication protocol for the Internet of Things.
Cristina Klippel Dominicini, Magnos Martinello, Cristiano Bonato Both, Juliano Araujo Wickboldt, Reza Nejabati, Daniel Fernandes Macedo, Johann M. Márquez-Barja, Luiz A. DaSilva
Enabling experimental research through converged orchestration of optical, wireless, and cloud domains Inproceedings
In: 27th European Conference on Networks and Communications, EUCNC 2018, Ljubljana, Slovenia, June 18-21, 2018, pp. 370–371, IEEE, 2018, (Short paper).
Abstract Links BibTeX Tags: 5G Cloud Computing Convergent Networks Experimental Approach Optical Networks Wireless Networks
@inproceedings{conf/eucnc/Dominicini18,
title = {Enabling experimental research through converged orchestration of optical, wireless, and cloud domains},
author = {Cristina Klippel Dominicini and Magnos Martinello and Cristiano Bonato Both and Juliano Araujo Wickboldt and Reza Nejabati and Daniel Fernandes Macedo and Johann M. Márquez-Barja and Luiz A. DaSilva},
url = {http://www.ict-futebol.org.br/wp-content/uploads/Enabling-experimental-research-through-converged-orchestration-of-optical-wireless-and-cloud-domains.pdf},
year = {2018},
date = {2018-01-01},
booktitle = {27th European Conference on Networks and Communications, EUCNC 2018, Ljubljana, Slovenia, June 18-21, 2018},
pages = {370--371},
publisher = {IEEE},
abstract = {In this paper we present an overview of the FUTEBOL Control Framework (CF), which aims to enable experimentation at the boundary of wireless and optical networks by facilitating the composition and control of experiments through a comprehensive software-based toolkit. FUTEBOL CF integrates the optical, wireless, and cloud domains, allowing the advancement of telecommunications through experimental research on optical-wireless networks that comprise heterogeneous resources from federated testbeds under a unified CF.},
note = {Short paper},
keywords = {5G, Cloud Computing, Convergent Networks, Experimental Approach, Optical Networks, Wireless Networks},
pubstate = {published},
tppubtype = {inproceedings}
}
In this paper we present an overview of the FUTEBOL Control Framework (CF), which aims to enable experimentation at the boundary of wireless and optical networks by facilitating the composition and control of experiments through a comprehensive software-based toolkit. FUTEBOL CF integrates the optical, wireless, and cloud domains, allowing the advancement of telecommunications through experimental research on optical-wireless networks that comprise heterogeneous resources from federated testbeds under a unified CF.
Juliano Araujo Wickboldt, Cristiano Bonato Both
FUTEBOL: Habilitando Pesquisa Experimental em Redes da Próxima Geração Inproceedings
In: 45th Seminário Integrado de Software e Hardware, SEMISH 2018, Natal, Brazil, Julho 22-26, 2018, SBC, 2018, (Invited talk, In portuguese).
Abstract Links BibTeX Tags: 5G Cloud Computing Convergent Networks Experimental Approach Optical Networks Wireless Networks
@inproceedings{conf/semish/Wickboldt18,
title = {FUTEBOL: Habilitando Pesquisa Experimental em Redes da Próxima Geração},
author = {Juliano Araujo Wickboldt and Cristiano Bonato Both},
url = {https://www.inf.ufrgs.br/~jwickboldt/wp-content/uploads/SEMISH-2018-FUTEBOL-Habilitando-Pesquisa-Experimental-em-Redes-da-Próxima-Geração.pdf},
year = {2018},
date = {2018-01-01},
booktitle = {45th Seminário Integrado de Software e Hardware, SEMISH 2018, Natal, Brazil, Julho 22-26, 2018},
publisher = {SBC},
abstract = {Grande progresso tem sido feito nos últimos anos no desenvolvimento de infraestruturas de pesquisa federadas em telecomunicações na Europa, através do programa FIRE. Mais recentemente, o projeto FIBRE permitiu a interconexão de instalações de pesquisa através de fibra óptica na Europa e no Brasil. No entanto, pesquisas na área de telecomunicações continuam largamente segregadas entre redes ópticas e sistemas sem fio, sendo que raramente pesquisadores cruzam a fronteira entre os dois. Argumenta-se no projeto FUTEBOL (Federated Union of Telecommunications Research Facilities for an EU-Brazil Open Laboratory) que as necessidades dos sistemas de telecomunicações futuros, seja para aplicações de altas taxas de dados em dispositivos móveis inteligentes, comunicações entre máquinas e Internet das Coisas, ou requisitos de backhaul decorrentes do adensamento das redes celulares, exigem o co-design das redes de acesso sem fio e os backhauls e backbones ópticos. O objetivo geral do projeto FUTEBOL é desenvolver e implantar infraestruturas de pesquisa, bem como as ferramentas de controle associadas para permitir experimentação, na Europa e no Brasil, a fim de fomentar a pesquisa experimental no ponto de convergência entre as redes ópticas e sem fio. Nesta apresentação, discutiremos alguns dos maiores desafios em pesquisa experimental em redes de próxima geração, em particular, focando na convergência óptico-sem fio},
note = {Invited talk, In portuguese},
keywords = {5G, Cloud Computing, Convergent Networks, Experimental Approach, Optical Networks, Wireless Networks},
pubstate = {published},
tppubtype = {inproceedings}
}
Grande progresso tem sido feito nos últimos anos no desenvolvimento de infraestruturas de pesquisa federadas em telecomunicações na Europa, através do programa FIRE. Mais recentemente, o projeto FIBRE permitiu a interconexão de instalações de pesquisa através de fibra óptica na Europa e no Brasil. No entanto, pesquisas na área de telecomunicações continuam largamente segregadas entre redes ópticas e sistemas sem fio, sendo que raramente pesquisadores cruzam a fronteira entre os dois. Argumenta-se no projeto FUTEBOL (Federated Union of Telecommunications Research Facilities for an EU-Brazil Open Laboratory) que as necessidades dos sistemas de telecomunicações futuros, seja para aplicações de altas taxas de dados em dispositivos móveis inteligentes, comunicações entre máquinas e Internet das Coisas, ou requisitos de backhaul decorrentes do adensamento das redes celulares, exigem o co-design das redes de acesso sem fio e os backhauls e backbones ópticos. O objetivo geral do projeto FUTEBOL é desenvolver e implantar infraestruturas de pesquisa, bem como as ferramentas de controle associadas para permitir experimentação, na Europa e no Brasil, a fim de fomentar a pesquisa experimental no ponto de convergência entre as redes ópticas e sem fio. Nesta apresentação, discutiremos alguns dos maiores desafios em pesquisa experimental em redes de próxima geração, em particular, focando na convergência óptico-sem fio
2017
Marcelo Antonio Marotta, Maicon Kist, Juliano Araujo Wickboldt, Lisandro Zambenedetti Granville, Juergen Rochol, Cristiano Bonato Both
Design considerations for software-defined wireless networking in heterogeneous cloud radio access networks Journal Article
In: Springer Journal of Internet Services and Applications, 8 (1), pp. 1–18, 2017, ISSN: 1867-4828.
Abstract Links BibTeX Tags: 5G Cloud Radio Access Networks (C-RAN) Software-Defined Radio (SDR) Softwarized & Programmable Networks
@article{DBLP:journals/jisa/MarottaKWGRB17,
title = {Design considerations for software-defined wireless networking in heterogeneous cloud radio access networks},
author = {Marcelo Antonio Marotta and Maicon Kist and Juliano Araujo Wickboldt and Lisandro Zambenedetti Granville and Juergen Rochol and Cristiano Bonato Both},
url = {https://doi.org/10.1186/s13174-017-0068-x},
doi = {10.1186/s13174-017-0068-x},
issn = {1867-4828},
year = {2017},
date = {2017-01-01},
journal = {Springer Journal of Internet Services and Applications},
volume = {8},
number = {1},
pages = {1--18},
abstract = {The fifth generation (5G) cellular infrastructure is envisaged as a dense and heterogeneous deployment of small cells overlapping with existing macrocells in the Radio Access Network (RAN). Densification and heterogeneity, however, pose new challenges such as dealing with interference, accommodating massive signaling traffic, and managing increased energy consumption. Heterogeneous Cloud Radio Access Networks (H-CRAN) emerges as a candidate architecture for a sustainable deployment of 5G. In addition, the application of SDN concepts to wireless environments motivated recent research in the so-called Software-Defined Wireless Networking (SDWN). In this article, we discuss how SDWN can support the development of a flexible, programmable, and sustainable infrastructure for 5G. We also present a case study based on SDWN to perform frequency assignment, interference, and handover control in an H-CRAN environment. Results allow the establishment of a tradeoff between wireless communication capacity gains and signaling overhead added by the employment of SDWN concepts to H-CRAN.},
keywords = {5G, Cloud Radio Access Networks (C-RAN), Software-Defined Radio (SDR), Softwarized & Programmable Networks},
pubstate = {published},
tppubtype = {article}
}
The fifth generation (5G) cellular infrastructure is envisaged as a dense and heterogeneous deployment of small cells overlapping with existing macrocells in the Radio Access Network (RAN). Densification and heterogeneity, however, pose new challenges such as dealing with interference, accommodating massive signaling traffic, and managing increased energy consumption. Heterogeneous Cloud Radio Access Networks (H-CRAN) emerges as a candidate architecture for a sustainable deployment of 5G. In addition, the application of SDN concepts to wireless environments motivated recent research in the so-called Software-Defined Wireless Networking (SDWN). In this article, we discuss how SDWN can support the development of a flexible, programmable, and sustainable infrastructure for 5G. We also present a case study based on SDWN to perform frequency assignment, interference, and handover control in an H-CRAN environment. Results allow the establishment of a tradeoff between wireless communication capacity gains and signaling overhead added by the employment of SDWN concepts to H-CRAN.
Cristian Cleder Machado, Juliano Araujo Wickboldt, Lisandro Zambenedetti Granville, Alberto Egon Schaeffer-Filho
ARKHAM: An Advanced Refinement toolkit for Handling Service Level Agreements in Software-Defined Networking Journal Article
In: Elsevier Journal of Network and Computer Applications, 90 , pp. 1–16, 2017, ISSN: 1389-1286.
Abstract Links BibTeX Tags: Policy-Based Network Management (PBNM) Quality of Service (QoS) Service Level Management Softwarized & Programmable Networks
@article{DBLP:journals/jnca/MachadoWGF17,
title = {ARKHAM: An Advanced Refinement toolkit for Handling Service Level Agreements in Software-Defined Networking},
author = {Cristian Cleder Machado and Juliano Araujo Wickboldt and Lisandro Zambenedetti Granville and Alberto Egon Schaeffer-Filho},
url = {https://doi.org/10.1016/j.jnca.2017.04.009},
doi = {10.1016/j.jnca.2017.04.009},
issn = {1389-1286},
year = {2017},
date = {2017-01-01},
journal = {Elsevier Journal of Network and Computer Applications},
volume = {90},
pages = {1--16},
abstract = {Software-Defined Networking (SDN) provides a more sophisticated and flexible architecture for managing and monitoring network traffic. SDN moves part of the decision-making logic (i.e., flow processing and packet routing) from network devices into a logically centralized controller. However, the expected behavior and configuration of network devices are often defined directly in the controller as static rules for specific situations. This approach becomes an issue when associated with an increasing number of network elements, links, and services, resulting in a large amount of rules and a high overhead related to network configuration. As an alternative, techniques such as Policy-Based Network Management (PBNM) and more specifically policy refinement can be used by operators to write Service Level Agreements (SLAs) in a user-friendly interface without the need to manually reconfigure each network device. To address these issues, we specifically introduce ARKHAM: an Advanced Refinement Toolkit for Handling SLAs in SDN. In this article, we present (i) a policy authoring framework that uses logical reasoning for the specification of business-level goals and to automate their refinement; (ii) an OpenFlow controller which performs information gathering and configuration deployment; (iii) a policy repository that stores information about the behavior of the infrastructure, which is obtained by the OpenFlow Controller, and policy authoring operations; and (iv) a formal representation using event calculus that describes our solution. The main contributions of this work are (i) the capacity to deploy refined policies with minimal human intervention; (ii) analysis of the infrastructure's ability to fulfill the requirements of high-level policies; (iii) decreased amount of network rules coded into the controller; and (iv) management and deployment of new rules with minimal disruption to the network. The experimental results demonstrate that the refinement toolkit achieves the expected results within acceptable performance bounds, even with the increasing complexity and size of SLAs, network topologies, and repositories.},
keywords = {Policy-Based Network Management (PBNM), Quality of Service (QoS), Service Level Management, Softwarized & Programmable Networks},
pubstate = {published},
tppubtype = {article}
}
Software-Defined Networking (SDN) provides a more sophisticated and flexible architecture for managing and monitoring network traffic. SDN moves part of the decision-making logic (i.e., flow processing and packet routing) from network devices into a logically centralized controller. However, the expected behavior and configuration of network devices are often defined directly in the controller as static rules for specific situations. This approach becomes an issue when associated with an increasing number of network elements, links, and services, resulting in a large amount of rules and a high overhead related to network configuration. As an alternative, techniques such as Policy-Based Network Management (PBNM) and more specifically policy refinement can be used by operators to write Service Level Agreements (SLAs) in a user-friendly interface without the need to manually reconfigure each network device. To address these issues, we specifically introduce ARKHAM: an Advanced Refinement Toolkit for Handling SLAs in SDN. In this article, we present (i) a policy authoring framework that uses logical reasoning for the specification of business-level goals and to automate their refinement; (ii) an OpenFlow controller which performs information gathering and configuration deployment; (iii) a policy repository that stores information about the behavior of the infrastructure, which is obtained by the OpenFlow Controller, and policy authoring operations; and (iv) a formal representation using event calculus that describes our solution. The main contributions of this work are (i) the capacity to deploy refined policies with minimal human intervention; (ii) analysis of the infrastructure's ability to fulfill the requirements of high-level policies; (iii) decreased amount of network rules coded into the controller; and (iv) management and deployment of new rules with minimal disruption to the network. The experimental results demonstrate that the refinement toolkit achieves the expected results within acceptable performance bounds, even with the increasing complexity and size of SLAs, network topologies, and repositories.
Ariel Galante Dalla-Costa, Lucas Bondan, Juliano Araujo Wickboldt, Cristiano Bonato Both, Lisandro Zambenedetti Granville
Maestro: An NFV Orchestrator for Wireless Environments Aware of VNF Internal Compositions Inproceedings
In: 31st IEEE International Conference on Advanced Information Networking and Applications, AINA 2017, Taipei, Taiwan, March 27-29, 2017, pp. 484–491, IEEE Computer Society, 2017, ISSN: 1550-445X.
Abstract Links BibTeX Tags: 5G Cloud Radio Access Networks (C-RAN) Network Orchestration Network Virtualization & Slicing
@inproceedings{DBLP:conf/aina/Dalla-CostaBWBG17,
title = {Maestro: An NFV Orchestrator for Wireless Environments Aware of VNF Internal Compositions},
author = {Ariel Galante Dalla-Costa and Lucas Bondan and Juliano Araujo Wickboldt and Cristiano Bonato Both and Lisandro Zambenedetti Granville},
url = {https://doi.org/10.1109/AINA.2017.126},
doi = {10.1109/AINA.2017.126},
issn = {1550-445X},
year = {2017},
date = {2017-01-01},
booktitle = {31st IEEE International Conference on Advanced Information Networking and Applications, AINA 2017, Taipei, Taiwan, March 27-29, 2017},
pages = {484--491},
publisher = {IEEE Computer Society},
abstract = {Dynamic Cloud Radio Access Network (Dynamic C-RAN) is an emerging wireless architecture that aims for flexibility, business agility, adaptability, among other benefits. In a Dynamic C-RAN, wireless functionalities can be split into smaller components and distributed along a hierarchical cloud infrastructure. Network Functions Virtualization (NFV) concepts have been recently investigated to facilitate management-related operations of these wireless functionalities. Despite the many advocated advantages of the function's splitting and the effectiveness of NFV orchestration solutions, both academia and industry are considering Virtualized Network Functions (VNF)s as atomic elements, disregarding the potential advantages of splitting VNFs into several different components. Aiming to improve VNF orchestration in Dynamic C-RAN scenarios, in this paper we propose Maestro: an NFV orchestrator for wireless environments that is able to decide among several possible VNF compositions which are more suitable for each situation. Maestro is designed to operate using different decision mechanisms that can be defined based on network operators' needs. We evaluate the effectiveness of our proposal by modeling the orchestrator's decision mechanism as a linear programming problem. Thus, we show how fronthaul bandwidth consumption can be reduced threefold considering different VNF compositions against atomic VNF placement.},
keywords = {5G, Cloud Radio Access Networks (C-RAN), Network Orchestration, Network Virtualization & Slicing},
pubstate = {published},
tppubtype = {inproceedings}
}
Dynamic Cloud Radio Access Network (Dynamic C-RAN) is an emerging wireless architecture that aims for flexibility, business agility, adaptability, among other benefits. In a Dynamic C-RAN, wireless functionalities can be split into smaller components and distributed along a hierarchical cloud infrastructure. Network Functions Virtualization (NFV) concepts have been recently investigated to facilitate management-related operations of these wireless functionalities. Despite the many advocated advantages of the function's splitting and the effectiveness of NFV orchestration solutions, both academia and industry are considering Virtualized Network Functions (VNF)s as atomic elements, disregarding the potential advantages of splitting VNFs into several different components. Aiming to improve VNF orchestration in Dynamic C-RAN scenarios, in this paper we propose Maestro: an NFV orchestrator for wireless environments that is able to decide among several possible VNF compositions which are more suitable for each situation. Maestro is designed to operate using different decision mechanisms that can be defined based on network operators' needs. We evaluate the effectiveness of our proposal by modeling the orchestrator's decision mechanism as a linear programming problem. Thus, we show how fronthaul bandwidth consumption can be reduced threefold considering different VNF compositions against atomic VNF placement.
Gustavo Bassil Heimovski, Rogério Correa Turchetti, Juliano Araujo Wickboldt, Lisandro Zambenedetti Granville, Elias Procópio Duarte Jr
Alta Disponibilidade de um Gerenciador de Nuvem IaaS Baseada em Replicação: Experiência & Resultados Inproceedings
In: 35º Simpósio Brasileiro de Redes de Computadores e Sistemas Distribuídos, SBRC 2017, Belém, Brazil, May 15-19, 2017, pp. 30–43, SBC, 2017, ISSN: 2177-496X, (In portuguese).
Abstract Links BibTeX Tags: Cloud Computing Fault Tolerance High Availability Infrastructure as a Service (IaaS)
@inproceedings{conf/sbrc/Heimovski17,
title = {Alta Disponibilidade de um Gerenciador de Nuvem IaaS Baseada em Replicação: Experiência & Resultados},
author = {Gustavo Bassil Heimovski and Rogério Correa Turchetti and Juliano Araujo Wickboldt and Lisandro Zambenedetti Granville and Elias Procópio Duarte Jr},
url = {https://sol.sbc.org.br/index.php/sbrc/article/view/2631},
issn = {2177-496X},
year = {2017},
date = {2017-01-01},
booktitle = {35º Simpósio Brasileiro de Redes de Computadores e Sistemas Distribuídos, SBRC 2017, Belém, Brazil, May 15-19, 2017},
pages = {30--43},
publisher = {SBC},
abstract = {In this work we report the experience of adding a high availability solution to an IaaS (Infrastructure as a Service) cloud platform called Aurora. The proposed solution is based on the multi-master replication of the cloud manager, replicas form a cluster of cloud managers running on multiple datacenters. The implementation also includes a monitoring service for the replicas. The high availability solution is fully integrated to the cloud platform so that activation is done directly by pushing a button of the Graphical User Interface. The performance and robustness of the proposed solution were evaluated experimentally. The time to (1) incorporate a new manager instance to a cluster; (2) recover an instance after a failure and (3) replicate data in different scenarios were measured and are reported in this paper. The impact of the proposed solution cost is evaluated by measuring CPU and network usage. A stress test in which the link delay between two datacenters grows up to the operating limit of the replication solution is also reported. Finally, we present a table for the system availability as a function of the MTBF (Mean Time Between Failures).},
note = {In portuguese},
keywords = {Cloud Computing, Fault Tolerance, High Availability, Infrastructure as a Service (IaaS)},
pubstate = {published},
tppubtype = {inproceedings}
}
In this work we report the experience of adding a high availability solution to an IaaS (Infrastructure as a Service) cloud platform called Aurora. The proposed solution is based on the multi-master replication of the cloud manager, replicas form a cluster of cloud managers running on multiple datacenters. The implementation also includes a monitoring service for the replicas. The high availability solution is fully integrated to the cloud platform so that activation is done directly by pushing a button of the Graphical User Interface. The performance and robustness of the proposed solution were evaluated experimentally. The time to (1) incorporate a new manager instance to a cluster; (2) recover an instance after a failure and (3) replicate data in different scenarios were measured and are reported in this paper. The impact of the proposed solution cost is evaluated by measuring CPU and network usage. A stress test in which the link delay between two datacenters grows up to the operating limit of the replication solution is also reported. Finally, we present a table for the system availability as a function of the MTBF (Mean Time Between Failures).
Gustavo Hermínio de Araújo, Marcelo Antonio Marotta, Juliano Araujo Wickboldt, Cristiano Bonato Both, Luciano Paschoal Gaspary, Juergen Rochol, Lisandro Zambenedetti Granville
Caracterizando Estratégias de Domínio Espacial para Gerenciamento de Regras em Redes Definidas por Software Inproceedings
In: 35º Simpósio Brasileiro de Redes de Computadores e Sistemas Distribuídos, SBRC 2017, Belém, Brazil, May 15-19, 2017, pp. 788–801, SBC, 2017, ISSN: 2177-496X, (In portuguese).
Abstract Links BibTeX Tags: Resource Management Softwarized & Programmable Networks
@inproceedings{conf/sbrc/deAraujo17,
title = {Caracterizando Estratégias de Domínio Espacial para Gerenciamento de Regras em Redes Definidas por Software},
author = {Gustavo Hermínio de Araújo and Marcelo Antonio Marotta and Juliano Araujo Wickboldt and Cristiano Bonato Both and Luciano Paschoal Gaspary and Juergen Rochol and Lisandro Zambenedetti Granville},
url = {https://sol.sbc.org.br/index.php/sbrc/article/view/2673},
issn = {2177-496X},
year = {2017},
date = {2017-01-01},
booktitle = {35º Simpósio Brasileiro de Redes de Computadores e Sistemas Distribuídos, SBRC 2017, Belém, Brazil, May 15-19, 2017},
pages = {788--801},
publisher = {SBC},
abstract = {Software-Defined Networks (SDN) based on Openflow protocol perform data forwarding through flow tables using match/action mechanisms. These tables have limited rules storage capacity, restricting network scalability and performance. Considering these restrictions, the main strategies for managing spatial domain rules, i.e., flow agregation and multiple flow tables, are promising to use the available storage space of the tables. These strategies impact packet processing in different ways, influencing the performance of the forwarding devices and the network. In spite of the impact, the comparison between flow aggregation and multiple flow tables is poorly exploited, leaving open the definition of which strategy is more appropriate for a network considering its topology and workload. In this article a quantitative characterization is proposed, defining the gains brought by these spatial domain strategies for forwarding devices and in different topologies.},
note = {In portuguese},
keywords = {Resource Management, Softwarized & Programmable Networks},
pubstate = {published},
tppubtype = {inproceedings}
}
Software-Defined Networks (SDN) based on Openflow protocol perform data forwarding through flow tables using match/action mechanisms. These tables have limited rules storage capacity, restricting network scalability and performance. Considering these restrictions, the main strategies for managing spatial domain rules, i.e., flow agregation and multiple flow tables, are promising to use the available storage space of the tables. These strategies impact packet processing in different ways, influencing the performance of the forwarding devices and the network. In spite of the impact, the comparison between flow aggregation and multiple flow tables is poorly exploited, leaving open the definition of which strategy is more appropriate for a network considering its topology and workload. In this article a quantitative characterization is proposed, defining the gains brought by these spatial domain strategies for forwarding devices and in different topologies.
Ariel Galante Dalla-Costa, Matias Artur Klafke Schimuneck, Juliano Araujo Wickboldt, Cristiano Bonato Both, Luciano Paschoal Gaspary, Lisandro Zambenedetti Granville
NFV em Redes 5G: Avaliando o Desempenho de Composição de Funções Virtualizadas via Maestro Inproceedings
In: 35º Simpósio Brasileiro de Redes de Computadores e Sistemas Distribuídos, SBRC 2017, Belém, Brazil, May 15-19, 2017, pp. 960–973, SBC, 2017, ISSN: 2177-496X, (In portuguese).
Abstract Links BibTeX Tags: 5G Cloud Radio Access Networks (C-RAN) Network Orchestration Network Virtualization & Slicing
@inproceedings{conf/sbrc/DallaCosta17,
title = {NFV em Redes 5G: Avaliando o Desempenho de Composição de Funções Virtualizadas via Maestro},
author = {Ariel Galante Dalla-Costa and Matias Artur Klafke Schimuneck and Juliano Araujo Wickboldt and Cristiano Bonato Both and Luciano Paschoal Gaspary and Lisandro Zambenedetti Granville},
url = {https://sol.sbc.org.br/index.php/sbrc/article/view/2660},
issn = {2177-496X},
year = {2017},
date = {2017-01-01},
booktitle = {35º Simpósio Brasileiro de Redes de Computadores e Sistemas Distribuídos, SBRC 2017, Belém, Brazil, May 15-19, 2017},
pages = {960--973},
publisher = {SBC},
abstract = {Dynamic Cloud Radio Access Network (Dynamic C-RAN) is an architecture wireless that aims benefits such as flexibility and agility to new five generation (5G) network. In Dynamic C-RAN, the radio functions processing is distributed along of a hierarchical of clouds. Network Functions Virtualization has been investigated the facilities to employ this wireless functions. NFV offers orchestration of split of radio functions into Virtualized Network Functions (VNF). The orchestrator needs to consider strict requirements of C-RAN between distributed components of VNF to get real earnings. In this work, we propose a detailed evaluation of Maestro - an NFV orchestrator for wireless environments aware VNF composition. We evaluate Maestro through of linear model programming, considering the effectiveness and orchestration overhead for deciding the best place to VNF components. In addition, we evaluate the trade-off between network data rate and time to generate the placement of components.},
note = {In portuguese},
keywords = {5G, Cloud Radio Access Networks (C-RAN), Network Orchestration, Network Virtualization & Slicing},
pubstate = {published},
tppubtype = {inproceedings}
}
Dynamic Cloud Radio Access Network (Dynamic C-RAN) is an architecture wireless that aims benefits such as flexibility and agility to new five generation (5G) network. In Dynamic C-RAN, the radio functions processing is distributed along of a hierarchical of clouds. Network Functions Virtualization has been investigated the facilities to employ this wireless functions. NFV offers orchestration of split of radio functions into Virtualized Network Functions (VNF). The orchestrator needs to consider strict requirements of C-RAN between distributed components of VNF to get real earnings. In this work, we propose a detailed evaluation of Maestro - an NFV orchestrator for wireless environments aware VNF composition. We evaluate Maestro through of linear model programming, considering the effectiveness and orchestration overhead for deciding the best place to VNF components. In addition, we evaluate the trade-off between network data rate and time to generate the placement of components.
Johann M. Márquez-Barja, Nicholas Kaminski, Paulo Marques, Moisés Renato Nunes Ribeiro, Juliano Araujo Wickboldt, Cristiano Bonato Both, Luiz A. DaSilva
Understanding the Challenges in the Optical/Wireless Converged Communications Book Chapter
In: Serrano, Martin; Isaris, Nikolaos; Schaffers, Hans; Domingue, John; Boniface, Michael; Korakis, Thanasis (Ed.): Building the Future Internet through FIRE, Chapter 25, pp. 645–661, River Publishers, 2017, ISBN: 9788793519121.
Abstract Links BibTeX Tags: 5G Convergent Networks Experimental Approach Optical Networks Wireless Networks
@inbook{inbook/MarquezBarja17,
title = {Understanding the Challenges in the Optical/Wireless Converged Communications},
author = {Johann M. Márquez-Barja and Nicholas Kaminski and Paulo Marques and Moisés Renato Nunes Ribeiro and Juliano Araujo Wickboldt and Cristiano Bonato Both and Luiz A. DaSilva},
editor = {Martin Serrano and Nikolaos Isaris and Hans Schaffers and John Domingue and Michael Boniface and Thanasis Korakis},
url = {https://www.riverpublishers.com/downloadchapter.php?file=RP_9788793519114C25.pdf},
doi = {10.13052/rp-9788793519114},
isbn = {9788793519121},
year = {2017},
date = {2017-01-01},
booktitle = {Building the Future Internet through FIRE},
pages = {645--661},
publisher = {River Publishers},
chapter = {25},
series = {Information Science and Technology},
abstract = {Current wireless trends (cell densification, coordinated communication, massive MIMO) pose a new set of challenges that require the joint consideration of optical and wireless network architectures. These problems are of direct impact to emerging economies such as Brazil, with highly heterogeneous infrastructure capabilities and demand, as well as to more established markets such as the EU, which aims to regain its leadership in the next generation of telecommunication technologies. FUTEBOL composes a federation of research infrastructure in Europe and Brazil, develops a supporting control framework, and conducts experimentation-based research in order to advance the state of telecommunications through the investigation of converged optical/ wireless networks. Also FUTEBOL establishes the research infrastructure to address these research challenges through innovation over this infrastructure, with a consortium of leading industrial and academic telecommunications institutions.},
keywords = {5G, Convergent Networks, Experimental Approach, Optical Networks, Wireless Networks},
pubstate = {published},
tppubtype = {inbook}
}
Current wireless trends (cell densification, coordinated communication, massive MIMO) pose a new set of challenges that require the joint consideration of optical and wireless network architectures. These problems are of direct impact to emerging economies such as Brazil, with highly heterogeneous infrastructure capabilities and demand, as well as to more established markets such as the EU, which aims to regain its leadership in the next generation of telecommunication technologies. FUTEBOL composes a federation of research infrastructure in Europe and Brazil, develops a supporting control framework, and conducts experimentation-based research in order to advance the state of telecommunications through the investigation of converged optical/ wireless networks. Also FUTEBOL establishes the research infrastructure to address these research challenges through innovation over this infrastructure, with a consortium of leading industrial and academic telecommunications institutions.
2016
Runxin Wang, Juliano Araujo Wickboldt, Rafael Pereira Esteves, Lei Shi, Brendan Jennings, Lisandro Zambenedetti Granville
Using Empirical Estimates of Effective Bandwidth in Network-Aware Placement of Virtual Machines in Datacenters Journal Article
In: IEEE Transactions Network and Service Management, 13 (2), pp. 267–280, 2016, ISSN: 1932-4537.
Abstract Links BibTeX Tags: Quality of Service (QoS) Resource Management Service Level Management
@article{DBLP:journals/tnsm/WangWESJG16,
title = {Using Empirical Estimates of Effective Bandwidth in Network-Aware Placement of Virtual Machines in Datacenters},
author = {Runxin Wang and Juliano Araujo Wickboldt and Rafael Pereira Esteves and Lei Shi and Brendan Jennings and Lisandro Zambenedetti Granville},
url = {https://doi.org/10.1109/TNSM.2016.2530309},
doi = {10.1109/TNSM.2016.2530309},
issn = {1932-4537},
year = {2016},
date = {2016-01-01},
journal = {IEEE Transactions Network and Service Management},
volume = {13},
number = {2},
pages = {267--280},
abstract = {Datacenter operators are increasingly deploying virtualization platforms to improve resource usage efficiency and to simplify the management of tenant applications. Although there are significant efficiency gains to be made, predicting performance becomes a major challenge, especially given the difficulty of allocating datacenter network bandwidth to multitier applications, which generate highly variable traffic flows between their constituent software components. Static bandwidth allocation based on peak traffic rates ensures SLA compliance at the cost of significant overprovisioning, while allocation based on mean traffic rates ensures efficient usage of bandwidth at the cost of QoS violations. We describe MAPLE, a network-aware VM ensemble placement system that uses empirical estimations of the effective bandwidth required between servers to ensure that QoS violations are within targets specified in the SLAs for tenant applications. Moreover, we describe an extended version of MAPLE, termed MAPLEx, which allows the specification of anticolocation constraints relating to the placement of application VMs. Experimental results, obtained using an emulated datacenter, show that, in contrast to the Oktopus network-aware VM placement system, MAPLE can allocate computing and network resources in a manner that balances efficiency of resource utilization with performance predictability.},
keywords = {Quality of Service (QoS), Resource Management, Service Level Management},
pubstate = {published},
tppubtype = {article}
}
Datacenter operators are increasingly deploying virtualization platforms to improve resource usage efficiency and to simplify the management of tenant applications. Although there are significant efficiency gains to be made, predicting performance becomes a major challenge, especially given the difficulty of allocating datacenter network bandwidth to multitier applications, which generate highly variable traffic flows between their constituent software components. Static bandwidth allocation based on peak traffic rates ensures SLA compliance at the cost of significant overprovisioning, while allocation based on mean traffic rates ensures efficient usage of bandwidth at the cost of QoS violations. We describe MAPLE, a network-aware VM ensemble placement system that uses empirical estimations of the effective bandwidth required between servers to ensure that QoS violations are within targets specified in the SLAs for tenant applications. Moreover, we describe an extended version of MAPLE, termed MAPLEx, which allows the specification of anticolocation constraints relating to the placement of application VMs. Experimental results, obtained using an emulated datacenter, show that, in contrast to the Oktopus network-aware VM placement system, MAPLE can allocate computing and network resources in a manner that balances efficiency of resource utilization with performance predictability.