计算机工程 ›› 2011, Vol. 37 ›› Issue (23): 116-118.doi: 10.3969/j.issn.1000-3428.2011.23.039

• 网络与通信 • 上一篇    下一篇

无线传感器网络时间同步算法研究

阳 韬   

  1. (盐城工学院实验教学部,江苏 盐城 224000)
  • 收稿日期:2011-06-09 出版日期:2011-12-05 发布日期:2011-12-05
  • 作者简介:阳 韬(1983-),男,助教、硕士,主研方向:无线传感器网络

Study on Time Synchronization Algorithm for Wireless Sensor Network

YANG Tao   

  1. (Department of Experiment Education, Yancheng Institute of Technology, Yancheng 224000, China)
  • Received:2011-06-09 Online:2011-12-05 Published:2011-12-05

摘要: 在洪泛时间同步协议的基础上,提出一种层次时间同步协议。该协议采用层次结构机制收集统计网络中每个节点的子节点数,消除叶子节点广播信息数据包的环节。仿真实验结果表明,该协议可以取得与洪泛时间同步协议一样的精确度,且能量消耗仅为洪泛时间同步协议的74%。

关键词: 无线传感器网络, 时间同步, 网络时间协议, 洪泛时间同步协议, 层次时间同步协议

Abstract: This paper proposes and evaluates a new time synchronization protocol called Hierarchical Time Synchronization Protocol(HTSP) which is an advanced version of the Flooding Time Synchronization Protocol(FTSP). The concept of hierarchy is adopted, and the hierarchy concept is used in collecting statistics for the number of child nodes of each node. With the collected number of child nodes, the HTSP can reduce the number of packet transmission. Simulation results show the energy consumption of the HTSP is only 74% of that of the FTSP.

Key words: Wireless Sensor Network(WSN), time synchronization, network time protocol, Flooding Time Synchronization Protocol(FTSP), Hierarchical Time Synchronization Protocol(HTSP)

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