关键词: 无线传感器网络, 路由算法, 分簇, 网络生存周期

Abstract: In clustering architectures, the selection of Cluster Heads（CHs） has an important influence on the energy consumption of Wireless Sensor Networks（WSNs）.  A CHs Sending Energy Consumption based CHs Selection algorithm （SECCS） is proposed. If a node has been a CH already, it temporarily can’t be a CH again. How long a node can’t be a CH is decided according to the sending energy consumption during it is a CH and the number of the nodes that can be CHs. In the selection of CHs, the minimum distance between two CHs is limited. A node with a reasonable number of neighbor nodes is more likely to become a CH if the neighbor nodes are close, so the CHs are distributed as evenly as possible. SECCS is a simple algorithm and does not need nodes residual energy or position. Simulation results show that the algorithm can promote the networks lifetime.

Key words: wireless sensor networks, routing algorithm, clustering, network lifetime