An Improvement of Energy Efficient Multi-hop Time Synchronization Algorithm in Wireless Sensor Network
Time synchronization is a crucial component for wireless sensor network (WSN), because large populations of sensor nodes will collaborate in order to complete the data gathering, data fusion and localization. In a wireless sensor network with large scale of energy limited nodes, multi-hop time synchronization is necessarily applied. Some protocols such as RBS and TSPN can be used based on a spanning tree network for multi-hop. However most of the methods mainly focus on the precision of synchronization. In fact energy efficiency is also a challenge in a resource-limited WSN. In this paper an improved scheme of multi-hop time synchronization is proposed with the purpose of reducing energy consumption and lengthening sensor nodes’ life. Performance analyses and simulations are also presented. First the proposed method has a better synchronization error performance. Second this proposed scheme consumes less energy than RBS and can decrease overhead.
time synchronization wireless sensor network energy consumption overhead
Zhehan Ding N. Yamauchi
Graduate School of Information, Production and Systems Waseda University Kitakyushu-shi, Japan
国际会议
北京
英文
1-5
2010-06-25（万方平台首次上网日期，不代表论文的发表时间）