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We propose an improved protocol based on Ad hoc On-Demand Distance Vector Routing (AODV) to adapt to the features such as energy limited and frequent topology changes in Wireless Sensor Networks (WSN). Based on the residual energy and communication load of each node, this protocol creates some routes from the source node to destination node, and then chooses a route to send data packets according to their reliability. When the route breaks up caused by the node's mobility or running out of energy, this protocol will choose a backup node which has a strong communication capability to forward data packets according to the backup routings information. The simulation results on OMNET++ shows that this protocol has a good performance on network life cycle, latency, packet transmission rate and so on.
Date of Conference: 27-29 Oct. 2012