1 juin @ 14h00 - 18h00 CEST
Date : 1er Juin 2021 à partir de 13h30, entièrement à distance, par visio
Le workshop Comex a pour but de présenter des thèmes de recherche récents ou émergents dans le domaine des Réseaux. Ces thèmes seront présentés par des industriels et des académiques du domaine. L’objectif est aussi de réunir les différentes communautés des thématiques de Comex :
- ComEx-1 Network Information Theory: Coding, Security and caching
- ComEx-2 Future Access Network: Cloud, Ran and Optimization problems
- ComEx-3 Distributed networks: Optimization, Game theory, uncertainty, Networking
- ComEx-4 Optical Communication: Signal Processing, Coding and Networks
afin de permettre l’échange et les discussions.
- Alexis Aravanis, L2S, Centrale Supelec
- Elie Awwad, LTCI, Telecom Paris, Institut Polytechnique de Paris
- Aline Carneiro Viana, INRIA Paris Saclay
- Hind Castel, Samovar, Telecom SudParis, Institut Polytechnique de Paris
- Marco Di-Renzo, L2S, Centrale Supelec
- Kinda Khawam, LRI, UVSQ
- Catherine Lepers, Samovar, Telecom SudParis, Institut Polytechnique de Paris
- Abdel Lisser, LRI, Université Paris Saclay
- 13h30 : Accueil, Présentation du Workshop : Marco Direnzo (Centrale Supelec, Université Paris Saclay) et Hind Castel(Telecom SudParis, Institut Polytechnique de Paris), Responsables de l’axe Comex.
- 13h35 : Distributed networks: Optimization, Game theory, uncertainty, Networking, Aline Carneiro Viana ( INRIA-Paris Saclay) et Abdel Lisser (LRI-Paris Saclay)
- 13h40 : Licia Amichi, INRIA Saclay, “Understanding individuals’ proclivity for novelty-seeking”.
- 14h05 : Philippe Jacquet, INRIA Saclay, “Sustainable blockchain for ioT”
- 14h45 : Future Access Network: Cloud, Ran and Optimization problems, Kinda Khawam (UVSQ-LRI), Anis Laouiti(Samovar-Télécom SudParis)
- 14h50 : Youssef Ait El Mahjoub, UVSQ, “Energy Packet Networks with general service time distribution”.
- 15h15 : Emilio Strinati Calvanese, CEA-Leti, technology research institute, “6G Networks: Beyond Shannon Towards Semantic and Goal-Oriented Communications”.
- 16h00 : Pause
- 16h15 : Optical Communication: Signal Processing, Coding and Networks, Elie Awwad (LTCI-Telecom Paris) et Catherine Lepers (Samovar, Telecom-Sudparis)
- 16h20 : Bruno Fracasso, IMT Atlantique, “les communications optiques sans fil”
- 17h00 :
- 17h25 :
Abstract des présentations et bios:
Abstract de Mme Licia Amichi, INRIA Saclay
Abstract : Human mobility literature is limited in its ability to capture the novelty-seeking or the exploratory tendency of individuals. Mainly, the vast majority of mobility prediction models rely uniquely on the history of visited locations (as captured in the input dataset) to predict future visits. This hinders the prediction of new unseen places and reduces prediction accuracy. In our works, we show that a two-dimensional modeling of human mobility, which explicitly captures both regular and exploratory behaviors, yields a powerful characterization of users. Using such model, we identify the existence of three distinct mobility profiles with regard to the exploration phenomenon Scouters (i.e., extreme explorers), Routiners (i.e., extreme returners), and Regulars (i.e., without extreme behavior). Further, we extract and analyze the mobility traits specific to each profile. We then investigate temporal and spatial patterns in each mobility profile and show the presence of recurrent visiting behavior of individuals even in their novelty-seeking moments. Our results unveil important novelty preferences of people, which are ignored by literature prediction models. Finally, we show that prediction accuracy is dramatically affected by exploration moments of individuals. We then discuss how our profiling methodology could be leveraged to improve prediction.
Abstract de Mr Philippe Jacquet, INRIA Saclay :
Abstract : With the rise of IoT with its billions of connected sensors and end device, we see the possibility of mapping large areas and complex systems into digital twins. Many cities are building their own digital twins whose components are updated in real time as the same pace as their physical counterparts. There is the possibility for the rising a digital twin of large portions of the world. The main technical issue the tackled in this vision, is the tremendous volume of distributed updates in software and data, which such huge system would generate, and how to keep track of them. One of the most promising architecture in this perspective is the blockchain, but after the devastating energy impact of bitcoin (the per year equivalent energy consumption of Greece) there is a need to make it sustainable and scalable. We will present a new blockchain concept based on green leader election. It would allow ledgers with a very high frequency of mining updates enduring a dynamic between one to several thousand of billions of simultaneous miners. The new blockchain would incur low or no pressure on network and would avoid any significant processing burden.
Bio de Mr Philippe Jacquet, INRIA Saclay :
Philippe Jacquet graduated from Ecole Polytechnique, Paris, France in 1981, and from Ecole des Mines in 1984. He received his PhD degree from Paris Sud University in 1989. Since 1998, he has been a research director in Inria, a major public research lab in Computer Science in France. He has been a major contributor to the Internet OLSR protocol for mobile networks. His research interests involve information theory, probability theory, artificial intelligence, protocol design, performance evaluation and optimization, and the analysis of algorithms. Since 2012 he is with Alcatel-Lucent Bell Labs as head of the department of mathematics of dynamic networks and information. Since 2019 he is with Inria as research director. He is recipient of the award Science et Defense 2004 from french government. He is IEEE Fellow.
Abstract de Mr Emilio Strinati Calvanese, CEA-Leti, technology research institute,
Abstract: This talk promotes the idea that including semantic and goal-oriented aspects in future 6G networks can produce a significant leap forward in terms of system effectiveness and sustainability. Semantic communication goes beyond the common Shannon paradigm of guaranteeing the correct reception of each single transmitted packet, irrespective of the meaning conveyed by the packet. The idea is that, whenever communication occurs to convey meaning or to accomplish a goal, what really matters is the impact that the correct reception/interpretation of a packet is going to have on the goal accomplishment. Focusing on semantic and goal-oriented aspects, and possibly combining them, helps to identify the relevant information, i.e. the information strictly necessary to recover the meaning intended by the transmitter or to accomplish a goal. Combining knowledge representation and reasoning tools with machine learning algorithms paves the way to build semantic learning strategies enabling current machine learning algorithms to achieve better interpretation capabilities and contrast adversarial attacks. 6G semantic networks can bring semantic learning mechanisms at the edge of the network and, at the same time, semantic learning can help 6G networks to improve their efficiency and sustainability.
Bio de Mr Emilio Calvanese Strinati
Dr. Emilio Calvanese Strinati obtained his Engineering Master degree in 2001 from the University of Rome ‘La Sapienza’ and his Ph.D in Engineering Science in 2005. He then started working at Motorola Labs in Paris in 2002. Then in 2006 he joint CEA/LETI as a research engineer. From 2007, he becomes a PhD supervisor. From 2010 to 2012, Dr. Calvanese Strinati has been the co-chair of the wireless working group in GreenTouch Initiative which deals with design of future energy efficient communication networks. From 2011 to 2016 he was the Smart Devices & Telecommunications European collaborative strategic programs Director. Between December 2016 and January 2020 is was the Smart Devices & Telecommunications Scientific and Innovation Director. Since February 2020 he is the Nanotechnologies and Wireless for 6G (New-6G) Program Director focusing on future 6G technologies. In December 2013 he has been elected as one of the five representative of academia and research center in the Net!Works 5G PPP ETP. From 2017 to 2018 he was one of the three moderators of the 5G future network expert group. Between 2016 and 2018 he was the coordinator of the H2020 joint Europe and South Korea 5GCHAMPION project that showcased at the 2018 winter Olympic Games, 5G technologies in realistic operational environments. Since July 2018 he is the coordinator of the H2020 joint Europe and South Korea 5G-AllStar project. Since 2018 he holds the French Research Director Habilitation (HDR). In 2021 he started the coordination of the H2020 European project RISE-6G, focusing on the design and operation of Reconfigurable Intelligent Surfaces in future high frequency 6G networks. Since February 2021 he is also the director of the New-6G (Nano Electronic & Wireless for 6G) initiative , dedicated to the required convergence between microelectronic & telecom, hardware & software, network & equipment for upcoming 6G technologies.
Abstract de Mr Youssef ait El Mahjoub, UVSQ
We consider an Energy Packet Network (EPN) model where the service times of the packets follow a Coxian distribution. EPNs are a recent type of models proposed by Gelenbe and his colleagues to study the interactions between energy consumption and the processing or the transmission of data. We prove that such a network has a product form solution for its steady-state distribution. We also state some sufficient conditions for the existence of the flow equations. Finally we study the performances and the energy consumption and we show how to optimize the assignement of solar panels over a sensor network.