An Opportunistic Routing for Mobile Wireless Sensor Networks Based on RSSI

In Mobile Wireless Sensor Networks(MWSN) with a sparse node population,an end-to-end path may be broken frequently or may not exist at any time due to nodes' mobility,which makes it impossible to apply the existing shortest-path routing protocols based on static topology for MWSN.An RSSI-based opportunistic routing protocol for MWSN,called OR-RSSI,is proposed in this paper.In OR-RSSI,Opportunistic Probability(OP)based on the RSSI of the Sink's Beacon packets and Mobility Vector(MV) is established and the best node with the highest OP is chosen to store and relay packets at each hop after packets are broadcasted.Simulation results show that OR-RSSI performs better on successful delivery ratio,goodput and energy overhead as compared with traditional TinyAODV.