中文摘要：

为解决无线传感器网络中经典低能量自适应分簇算法产生的簇头数量分布不稳定，从而导致网络生存时间变短问题，提出一种基于双重选举机制的分簇算法（TSSCH）．仿真结果表明，与经典低能量自适应分簇算法（LEACH）相比，TSSCH算法可保证无线传感器网络的簇头数量更加合理地分布在最优值周围，从而能够更好地均衡无线传感器网络负载，达到延长无线传感器网络生命期的目的．

英文摘要：

In view that the number of cluster heads produced by the conventional low energy adaptive clustering hierarchy （LEACH） algorithm in each round varies in a large range around the target value, which shortens the network lifetime of the wireless sensor networks, a two step selection clustering hi erarchy （TSSCH） algorithm was developed. Simulation results show that the TSSCH algorithm can assure the number of clus ter heads selected in each round tends to distribute in a more reasonable range around the optimal value comparing with the conventional LEACH algorithm, which makes the whole net work energy load more balanced, and thus prolongs the network lifetime of the wireless sensor networks.