Charla “Introduction to Wireless Sensor Networks”

Tahiry razafindralambo Researcher at INRIA in the FUN project
10 Abril, 2013 - 12:00
Auditorio DCC

Received his MSc in applied statistics and computer science from the university of Antananarivo in 2001 and his PhD. degree in Computer Science from the INSA de Lyon in 2007. He is currently an INRIA full researcher. His research interests are mainly focused on distributed algorithms and protocols design for wireless networks and performance evaluation. He is involved in many organization and program committees of national and international conferences such as DCOSS, MASS, PE-WASUN, MSWIM, PIMRC, ICC.

Resumen Charla:

Sensor networks consist of autonomous nodes with limited battery and sometimes of base stations with theoretical infinite energy. In this tutorial, we will focus on introduction, challenges and recommandation regarding energy efficiency of communication layers in such networks. In particular, we will explore MAC and routing protocols (including broadcasting, unicasting, multicasting, anycasting) and controlled mobility management. For instance, in routing issue, the simplest and most widely used approach to routing is a greeddy geographical routing, which lets every node choose the next hop in the routing process depending on the progress toward the destination. This mays causes routing loops or undeliverable packets and results in unnecessary bandwidth waste. To overcome these problems, a number of research groups have proposed more efficient routing schemes with the goal of minimizing the consumed energy, while still guaranteeing that a packet is delivered to the destination. In mobility management, we consider that nodes can move and use this mobility to change the shape of the network and extend the lifespan of the network without compromising neither area coverage nor network connectivity. All theses problems can be addressed in a localized manner which guarantees the scalability and robustness of the proposal in the context of limited devices.