关键词: 无线传感器网络, 负载均衡, 剩余能量

Abstract: Based on LEACH protocol，this paper proposes a new Clustering Algorithm based on Load-balance and Residual Energy（CALRE） for WSN.In CALRE，each node is described as near node or far node according to its distance to the BS，and setting the maximum size for each cluster，in order to get load-balanced.And this paper makes the node become cluster head，which has the greatest residual energy，so as to get less complicacy and less energy wastage.Simulation results show that CALRE outperforms LEACH significantly with a better cluster head election mechanism and a better cluster architecture，and prolongs the network lifetime efficiently.

Key words: wireless sensor networks, load balance, residual energy