摘要
无线传感器网络服务质量Qo S(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。
One of important reasons for the decline of Qo S 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.
出处
《计算机与现代化》
2016年第8期79-85,共7页
Computer and Modernization
基金
国防信息学院科研基金资助课题(KYKT-155067)
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
wireless sensor network
quality of service
failure sensor node
round trip path
round trip time
