关键词: 无线传感器网络, 分簇, 能量均衡

Abstract: Clustering techniques can increase utilization of energy and scalability for wireless sensor networks.This paper proposes an novel Overall Energy-Balanced Routing protocol（OEBR） in order to solve the problem of unbalanced energy consumption in the clustering techniques.Selecting part nodes with more residual energy to take tentative cluster heads，via compute similitude（distance） form a tentative cluster head to nodes which in the rage of R broadcast radius，according similitude，tentative cluster heads compete final cluster head.Propose a communication model which combines single hop with multi-hop to perform inter-cluster communication，according to the threshold of energy and distance to change communication model between single hop and multi-hop.Simulation results show that the proposed routing protocol the clustering schema balances the overall energy consumption，and prolongs the network lifetime well.

Key words: wireless sensor networks, clustering, energy balanced