Abstract:

With the consideration of  the fact that the sensor nodes are equipped with limited battery power, a new energy aware opportunistic routing was proposed
 for prolong the network lifetime.  It exploits a new routing metric, which jointly considers link quality and energy. Also, a forwarding candidate selection method was proposed and the cooperation between the nodes which are in candidate set was presented. The simulation results evaluate the effectiveness of the proposed schemeenergy aware/expected transmission count (ETX) opportunistic routing (ETOE). It is shown that the ETOE can obtain much better results compared with the traditional opportunistic routing.

Key words: wireless sensor networks, opportunistic routing, energy aware