A Inter-Cluster Multi-Hop Routing Protocol Improved Based on LEACH Protocol

In order to balance energy consumption of wireless sensor networks,and prolong survival time of the networks,this paper studies several routing protocol based on uniform clustering and non-uniform clustering,and propose an inter-cluster multi-hop routing protocol improved based on LEACH protocol. The protocol introduces energy factor and distance factor to correct threshold function for LEACH protocol. In inter-cluster communication process,cluster head nodes communicate with Sink node by multi-hop,which forms an optimal path leads to Sink node among cluster head nodes. The result of experiment shows that,compared to LEACH protocol and EEUC protocol,the new protocol this paper proposed can balance effectively energy consumption of the networks,and prolong the life of wireless sensor networks.