Section: Application Domains

Energy efficient wireless sensor networks

Abstract. Energy efficiency is a key property in wireless sensor networks.

Various techniques are used to contribute to energy efficiency. In the OCARI network, an industrial wireless sensor network, we have designed and implemented an energy efficient routing protocol and a node activity scheduling algorithm allowing router nodes to sleep. We have applied a cross-layering approach allowing the optimization of MAC and network protocols taking into account the application requirements and the environment in which the network operates. This activity has been done in collaboration with our partners EDF, LIMOS and TELIT.