Services and Architectures for Advanced Networks

- sara -


The SARA team works on new-generation networks and communication systems.


With the rise of the Internet of Things and Edge Computing, the multiplication of radio access technologies (notably 5G and LPWAN networks) and a strong trend towards network virtualization, the importance of these systems is set to increase still further. These developments will also lead to unprecedented network complexity, the mastery of which is already posing real conceptual difficulties. Against this backdrop, the team's work is aimed at achieving real methodological breakthroughs in the design, deployment, planning, supervision and control of communication networks and services. Our contributions include the development of methods, models and tools, as well as proposals for architectures, protocols and services. To address these challenges, the team is organized into two research axes, with the first focusing on network architectures and services, and the second on distributed algorithms, protocols and network architectures. These two areas of research naturally interact and draw on a number of theoretical models and tools, ranging from graph grammars and ontologies to theories of queuing and non-cooperative games, mathematical optimization and machine learning.

Reconfigurable architectures for connected objects

Approaches for moving from application silo architectures to opened and dynamically reconfigurable architectures hosting multiple context aware applications.

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Energy-aware Networks

This research topic focuses on multi-objective optimization of Quality of Service (QoS) and energy efficiency in today's innovative architectures (cloud/fog/edge computing).

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Scalable algorithms, protocols and services

The aim of this work is to design algorithms for resource allocation and scheduling, as well as service discovery and composition, that will scale up to tomorrow's networks.

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Stand-alone networks and applications

The aim is to design methods enabling networks and applications to react autonomously to adverse events and demand fluctuations, with minimal human intervention.

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Network softwarization and virtualization

Our work is aimed at more agile networks in which the data and control planes are separated, and in which certain functions are implemented in software.

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Latest publications

Awards

  • 2023 Outstanding Contributions Award, IEEE International Conference on Ubiquitous Intelligence and Computing (UIC).
  • Best Demo Award. International Conference on Service Oriented Computing (ICSOC 2018)
  • Runner-up Demo Award. IEEE Consumer Communications & Networking Conference (CNCC 2017)
  • Runner-up Demo Award. IEEE International Symposium on Local and Metropolitan Area Networks (LANMAN 2016)
  • Best Research Paper Award. IEEE International Conference on Cloud Computing Technology and Science (CloudCom 2011)
  • Best artifact award. ACM Internet Measurement Conference (IMC 2023)
  • Best short paper award. ACM Internet Measurement Conference (IMC 2022)

Responsibilities

  • Vice-Chairman of the IEEE Technical Committee on Scalable Computing (TCSC) of the IEEE Computer Society (CS) depuis Janvier 2023.
  • Membre du IEEE Award Committee for Excellence in Scalable Computing for Mid-career Researchers, Early-career Researchers & Outstanding Ph.D Thesis.

Participation in editorial boards

  • Wiley Internet Technology Letters , depuis 2017 (ITL)
  • Journal on Network and System Management, depuis 2015 (JNSM)
  • IEEE Internet of Things Journal (IEEE IoT), depuis 2018 (IEEE IoTJ)
  • Smart Science Journal, depuis 2018 (Smart Science)
  • International Journal of Digital Signals and Smart Systems,  depuis 2016 (IJDSSS)
  • IEEE Transactions on Network Science and Engineering, depuis 2023
  • IEEE Transactions on Network and Service Management, depuis 2022
  • IEEE Transactions on Cloud Computing, depuis 2016

Organization of international conferences

General Chair :

  • The 22nd International Conference on Service-Oriented Computing (ICSOC). Tunis, Tunisa, Nov. 2024 (icsoc.org)
  • The ACS/IEEE International Conference on Computer Systems and Applications (AICCSA 2024, Sousse, Tunisia, nov. 2024.
  • Symposium on Solutions for Smart Cities Challenges (SSCC2021), Gandia, Spain. December 6-9, 2021
  • 30th IEEE International Conference on Enabling Technologies: Infrastructure for Collaborative Enterprises(IEEE WETICE 2021)
  • 29th IEEE International Conference on Enabling Technologies: Infrastructure for Collaborative Enterprises(IEEE WETICE 2020)

TPC Chair :

  • The 19th IEEE International Conference on Ubiquitous Intelligence and Computing (IEEE UIC 2022), Haikou China, Décember 2022.
  • The IEEE International Conference on Collaboration Technologies and Infrastructures (IEEE Wetice 2021), conférence virtuelle, octobre 2021.
  • The 13th International Symposium on Intelligent Distributed Computing (IDC 2019), Saint-Petersbourg, Russian Federation, October, 2019.
  • The 17th International Conference on Service-Oriented Computing (ICSOC). October 28-31, 2019. Toulouse,France (icsoc.org)
  • The ACS/IEEE International Conference on Computer Systems and Applications (AICCSA 2019, Abou Dhabi, EAU, novembre 2019.

Program Committee member

Organization of international workshops

  • 13th IEEE Workshop Parallel / Distributed Combinatorics and Optimization (PDCO 2023) St Petersburg, Florida, USA.
  • 12th IEEE Workshop Parallel / Distributed Combinatorics and Optimization (PDCO 2022), Lyon France.

International cooperation

The SARA team fosters global research partnerships and acknowledges the valuable contributions of international colleagues to the SARA team's scientific endeavours. It recognizes international collaborators who work closely with its members.

To be considered eligible, these collaborators must:

  • Be affiliated within a research institution outside of France,
  • Have visited or conducted a stay at LAAS in Toulouse within the past five years,
  • Have co-authored scientific publications or have co-supervised a PhD Thesis with the team members.

The process for appointing SARA Research Fellows involves three steps:

  1. The team members nominate potential candidates,
  2. The team scientific council reviews and validates the nominations,
  3. The team leader validates officially the final appointment decision.

2024 SARA Research Fellows

5G platform: Experimental platform based on servers and USRPs for hardware, and above all Open Air Interface (OAI) software. It enables up to two gNodeBs (5G antennas) and two users to be set up for experiments. The aim is to implement new approaches to resource management, security, etc., so that they can be evaluated in a real environment. It completes the study spectrum by enabling us to evaluate real-life implementations of the new techniques we are developing for 5G.

OptiCloudNRJ: OpenStack-based Cloud platform comprising 4 servers, one of which is front-end AC-powered and energy-monitored by a PDU; 2 servers are located in the ADREAM building and are DC-powered via a dedicated photovoltaic panel array. By taking advantage of the DC bus supervision system in the ADREAM building, the idea is to be able to deploy task/virtual machine scheduling algorithms/heuristics that take into account quality of service and energy consumption parameters. As part of the building's energy supply comes from photovoltaic panels, the platform enables different scheduling solutions to be evaluated, taking into account the solar energy available and the amount of energy available in the storage elements, for a given server load. The platform also enables offline scenarios to be replayed.

Smart city model: Model of a smart, connected city with roads, RSUs, edge computing nodes (raspberry, telephones, etc.), pedestrians (playmobil) and signaling (traffic lights, signs, etc.), with NFV/SDN-based infrastructure. For the moment, the prototype is being used to implement, validate and evaluate QoS management actions in a dynamic, mobile environment (placement, migration, scheduling, (re)configuration, etc.) for the services deployed. (e.g., trust/recommendation, security/privacy, AI/ML, etc.).

QoS-Aware NFV-enabled IoT service platform: This is an extension of our M2M/IOT service platform (OM2M), adding dynamic deployment of virtualized network functions (VNF) for end-to-end traffic management. The original idea is to replace the cloud approach of "systematic scale-out" with solutions that reduce the cost of platform deployment while maintaining acceptable quality of service. We have demonstrated a 60% reduction in deployment costs by developing solutions based on the virtualization of traffic management functions in a way suited to end-to-end deployment in M2M/IoT platforms.

THESIS / HDR

2025

Abdel Kader Chabi Sika Boni, Thèse: Architectures et algorithmes intelligents pour les systèmes IoT autonomes

Stanislas Pedebearn, Thèse: Vers une approche collaborative pour l'orchestration de services dans les réseaux multi-domaines interalliés

Nicola Accettura, Habilitation à diriger des recherches: Scalable and energy efficient communications in the Internet of Things

2024

Juan Chafla Altamirano, Thèse: VERS UNE GESTION AUTONOMIQUE DE RÉSEAU ALIMENTÉE PAR DRL, SDN ET GAN POUR L’OPTIMISATION DU ROUTAGE

Zheng Zhou, Thèse: IoT omniprésent grâce aux communications spatiales

Sami Yangui, Habilitation à diriger des recherches: Service Lifecycle Management in the Cloud Continuum

2023

Balakrishna Prabhu, Habilitation à diriger des recherches: Some applications of asymptotic analysis in communication networks

Clément Cassé, Thèse: Prévision des performances des services Web en environnement Cloud

Laurent Chasserat, Thèse: Trading-off throughput and energy-efficiency in long range wide area networks

2022

Raoua Chakroun, Thèse: un schéma efficace de dissémination des informations urgentes pour les réseaux véhiculaires émergents

Nour El Houda Nouar, Thèse: Une approche centrée-coût pour la gestion du cycle-de-vie des Services Réseaux Virtualisés

2021

Josué Castañeda Cisneros, Thèse: Vers une approche de l'orchestration sans coordination pour gérerla reconfiguration cohérente des services dans les environnements NFV multi-domaines

Kassem Asfour, Thèse: Modélisation numérique de la propagation d'ondes en milieux complexes : application aux milieux granulaires non consolidés

Kokouvi Benoit Nougnanke, Thèse: Vers un management basé ML des Réseaux SDNs

Clovis Anicet Ouedraogo, Thèse: Sur la gestion de la QoS dans les plates-formes IoT compatibles NFV

Karima Khadir, Thèse: Vers une approche de découverte et de sélection distribuées des services IoT basées sur des avatars autonomes

Tanissia Djemai, Thèse: Placement optimisé de services dans les architectures fog computing et internet of things sous contraintes d'énergie, de QoS et de mobilité

El-Fadel Bonfoh, Thèse: VTL : Une Architecture Stable pour la Conception, l'Implémentation, et le Déploiement de Protocoles de Communication d'Internet

Samir Medjiah, Habilitation à diriger des recherches: Vers la Softwarization et Virtualisation de Piles de Communication

2020

Ioanna Stypsanelli, Thèse: Conception Optimale et Gestion des Ressources des Infrastructures Fog pour des Réseaux Véhiculaires

Thi Thuy Nga Nguyen, Thèse: Ordonnancement garantissant l’équité proportionnelle des utilisateurs mobiles basé sur une connaissance partielle des conditions futures des canaux

Soufian Toufga, Thèse: Vers des réseaux véhiculaires (VANET) programmables grâce à la technologie SDN (software defined network)

Quentin Ricard, Thèse: Détection autonome de trafic malveillant dans les réseaux véhiculaires

Imane Oussakel, Thèse: Métrologie et management des réseaux cellulaires 4G/5G

Santiago Duran, Thèse: Allocation de ressources avec environnements observables et non-observables

2019

Lunde Chen, Thèse: Allocation de ressources dans des réseaux définis par logiciels sans-fil multi-domaines

2018

Pascal Berthou, Habilitation à diriger des recherches: Vers la Dématérialisation des Réseaux Hybrides Satellites et Terrestres

Guillaume Garzone, Thèse: Approche de gestion orientée service pour l'Internet des objets (IoT) considérant la Qualité de Service (QoS)

François Aïssaoui, Thèse: Approche autonome basée sur la sémantique et le point de contrôle pour la gestion de système IoT

Nicolas Seydoux, Thèse: Vers une gestion intelligente des données de l'Internet des Objets

Gilles Roudiere, Thèse: Détection d'attaques sur les équipements d'accès à Internet

Armel Francklin Simo Tegueu, Thèse: Vers les réseaux guidés par et pour les applications hautement dynamiques.

2017

Mohamed Oulmahdi, Thèse: Architecture Autonome et Extensible pour une Couche de Transport Évolutive. Application aux Communications Aéronautique par Satellites

Inès De Courchelle, Thèse: Vers une meilleure utilisation des énergies renouvelables : application à des bâtiments scientifiques

Imen Mahjri, Thèse: Localisation distribuée et détection des conflits dans les réseaux mobiles sans fil

2016

Emna Mezghani, Thèse: Vers les systèmes IoT autonomiques et cognitifs, application pour la gestion des traitements des patients

Marc Bruyère, Thèse: Une approche pure et simple open source pour l'échange Internet simple et pragmatique

Amina Chaabane, Thèse: MULUS : un réseau social distribué pour une consommation sélective de contenus composites

Ikbel Guidara, Thèse: Choix efficace du temps et du QoS pour la composition du service

Wael Zouaoui, Thèse: Synthèse de commande pour des réseaux de communication énergétiquement performants

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