计算机与现代化

• 网络与通信 • 上一篇    下一篇

无线传感器网络中基于往返时间的失效节点探测算法

  

  1. (国防信息学院4系作战训练教研室,湖北 武汉 430013)
  • 收稿日期:2016-01-15 出版日期:2016-08-18 发布日期:2016-08-11
  • 作者简介:张岱臣(1980-),男,黑龙江龙江人,国防信息学院4系作战训练教研室讲师,硕士,研究方向:无线自组织网络协议,负载均衡; 周丹(1979-),男,黑龙江克山人,讲师,硕士,研究方向:无线网络,网络通信。
  • 基金资助:
    国防信息学院科研基金资助课题(KYKT-155067)

Algorithm of Failure Sensor Node Detection Based on Round Trip Time in Wireless Sensor Network

  1. (Combat Teaching and Research Section, PLA Academy of National Defense Information, Wuhan 430013, China)
  • Received:2016-01-15 Online:2016-08-18 Published:2016-08-11

摘要: 无线传感器网络服务质量QoS(Quality of Service)下降的一个重要原因是节点失效。本文提出一种基于路径往返时间的失效节点检测算法,用离散法生成往返路径,通过测量路径的往返时间来探测和定位失效节点。通过实物和软件仿真,验证了该方法的有效性。相比于线性往返路径选择法,离散法能够大量减少测量路径的数量,有效缩短失效节点探测时间。

关键词: 无线传感器网络, 服务质量, 节点失效, 往返路径, 往返时间

Abstract: One of important reasons for the decline of QoS in wireless sensor network is the failure of sensor nodes. We propose an algorithm to detect failure node based on round trip time. Discrete method is used to generate the round trip path and the failure sensor nodes are detected and located by measuring the round trip time of the path. By physical simulation and software simulation, we verify the applicability of the algorithm. Compared with the methods of linear round trip path, the discrete method could reduce the number of paths measured and shorten the time of detection.

Key words: wireless sensor network, quality of service, failure sensor node, round trip path, round trip time

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