A battery recovery aware routing protocol for Wireless Sensor Networks

The design of efficient Wireless Sensor Networks is a very hot topic nowadays. The efficiency could be observed at many levels, from the application layer to the physical part. In order to get better performances over WSN, many layers could be considered. Indeed, routing over Wireless Sensor Networks (WSN) has been considered in many studies. The energy consumption is one of the hottest issue in this area. Many papers have proposed solutions in order to reduce the energy consumption while handling routing. However, energy optimisation could not ensure a network lifetime extension, since the battery discharge is not linear. We propose in this paper a routing protocol which considers carefully the battery recovery in path searching. We prefer use paths composed of nodes having their batteries fully recovered and letting other nodes completing their batteries recovery to extend their time usage. The paths change continuously since some nodes need to shut down in order to have enough time to recover additional energy.