电院图像所“111引智计划”系列讲座

Recent Advanced in Wireless and Mobile Networks

时间：2014年4月25日10:00-11:40

地点：电信楼群5号楼东303A会议室

主办单位：电信学院图像通信与网络工程研究所

Talk 1: Applications of algebraic topology in mobile communications

Speaker: Philippe Martins

Abstract: The purpose of this presentation is to introduce the potential applications of algebraic topology in the area of mobile communications. This presentation will first introduce some theoretical background in algebraic topology, and more specifically simplicial homology. The notions of simplicial complex and Betti numbers will first be introduced. Then, two particular simplicial complexes, namely the Rips and Cech complexes will be presented. Their use in addressing in the coverage hole detection problem will be developped. Applications to cellular green networking will also be outlined.

Short Bio

Philippe Martins is professor in the networking and computer science department, at Télécom ParisTech (previously known as ENST or Ecole Nationale Supérieure des Télécommunications, Paris, France), since 2010. He obtained his PhD from Télécom ParisTech in 2000 for his work on the design and the performance evaluation of signaling protocols for B-ISDN networks. In 2000, he started working on cellular networks. His main research interests lie in performance evaluation, planning and protocol design. He has published several papers on different international journals and conferences. He is an IEEE senior member since 2010. He is co-author of three chapter books on UMTS and 4G systems. He is also co-author of a book on 4G systems (Springer edition) published in October 2012.

Talk 2: Recent advances in the mobility support for Low-power and Lossy Wireless Networks (LLN)

Speaker: Thomas Noel and Julien Montavont

Abstract: Rapid development of low-power wireless technologies together with advances in miniaturized electronic systems have stimulated the appearance of a new class of networks known as Low-power and Lossy Wireless Networks (LLN). LLN have enabled a wide variety of applications, ranging from scientific observations to personal home automation. Recent studies report that LLN account for an increasingly huge number of connections, from 1.9 billion devices today to 9 billion by 2018. Similarly to cellular networks, most of those connections would involve mobile nodes, either using fixed infrastructures or connected via autonomous multihop ad hoc networks. In that context, a particular attention should be provided to efficiently support mobile nodes. However, for the past 30 years, computer communications are based on the TCP/IP model that have not been designed to support a vast number of mobile nodes. Standards proposed so far only consist in slight modifications and adaptations to an underappreciated issue.

In this presentation we will first introduce the scientific topics of the network research group of ICube laboratory, France. Then we will investigate recent advances made in the mobility support for LLN. Finally, we will present the FIT IoT lab plateform and how researchers / students can use it remotely.

Short Bio

Thomas Noel is professor of University of Strasbourg and Deputy Director of the ICube Laboratory and Head of Computer Science Department. His research activities include several aspects of wireless communications networks and telecommunications systems. He is particularly interested in wireless sensor networks, ubiquitous computing, network mobility, self-organized mobile networks, mobile network architecture and protocols, and multicast and group communications. He has more than 100 international publications. He was General Co-Chair of IEEE WiMob’2013. He has supervised 8 PhDs since 2009.

Julien Montavont received M.Sc (2004) and PhD (2006) degrees in computer science from the University of Strasbourg, France. He is currently an associate professor at University of Strasbourg and a member of the network research group of the ICube laboratory which is jointly supervised by the french National Centre for Scientific Research (CNRS) and the University of Strasbourg. His main research interests lie in the areas of the Internet of Things and wireless networks. His work focuses on mobility support, multihoming support, and energy-efficient medium access control and routing in wireless networks. He has more than 20 international publications and co-advised 3 PhD students. He regularly serves as an external reviewer for major international journals and conferences such as Ad Hoc Networks (Elsevier), IEEE Transactions on Vehicular Technology and IEEE ICC. In 2008, he was invited researcher at Ecole Polytechnique de Montreal (Canada) by Prof. Samuel Pierre.