Study On Routing Protocol Based On Location Information For Wireless Sensor Networks

Routing technology is one of the key technologies of WSN(Wireless Sensor Networks), how to design low power routing protocol is an important task. To solve this problem, based on GPSR and LEACH protocols, two improved algorithms ADS_GPSR and HRBGR were proposed in this paper.Different from the boundary forwarding strategy of GPSR, the ADS_GPSR adopts advance detour strategy, effectively avoided the problem of routing empty by sending"empty"message.The algorithm of HRBGR based on local information Self-Organizing Clustering, forms the optimal number of cluster head node, member nodes decide cluster head node and agent node independently. Cluster head nodes according to principle of minimum spanning tree organized into a routing tree and send datas.to the Sink through multi-hop communications. Theoretical analysis and simulation show that, these two algorithms can improve the energy consumption, prolong the lifetime of networks and reduce the delay better than the original algorithm.