摘要： 提出一种节能的无线传感器网络分簇时间同步算法(CBTS)。利用高性能的晶体振荡器稳定性原理，通过高性能簇头组成簇状拓扑结构实现时间同步，取得延长簇的同步更新周期和减少簇内节点双向同步交换数据包次数成效。实验结果表明，CBTS算法与TPSN算法相比，在精度一定条件下，能有效降低整个网络的能耗。

关键词: 无线传感器网络, 时间同步, 分簇

Abstract: This paper proposes a low energy Cluster-Based Time Synchronization algorithm(CBTS) for wireless sensor networks. The algorithm makes use of the principle of high-crystal to obtain frequency stability, and achieves network-wide time synchronization by clusters topology of high-crystal heads. It acquires the effect that prolong the cluster update synchronization time and reduce the transmissions of data messages. Experimental result shows that in the condition of some precision, compared with TPSN algorithm, the algorithm can reduce the energy consumption of the whole network.

Key words: wireless sensor networks, time synchronization, clustering

中图分类号: 

• TP393.02