摘要
节点故障是无线传感器网络(WSNs)研究中的一个重要问题。由于WSNs规模大,节点能量受限,加之传感器制作工艺等方面的原因,使得节点发生故障的概率较高。针对WSNs中的节点故障问题,提出一种基于苯环结构的节点故障检测算法。该算法利用苯环结构的对称性,减少邻居节点的数目从而达到降低故障检测能耗的目的,同时延长了网络的生存周期。采用OMNeT++建立仿真环境,对算法性能进行测试。测试结果表明:该算法较其他算法具有较低的能量消耗和较高的网络连通性及可扩展性。
Node fault is the major issue,in wireless sensor networks（WSNs） research.Due to large-scale of WSNs and limited node energy,in addition to sensor manufacture techniques,node may takes a high rate of failures.Aiming at node fault in WSNs,a node fault detection algorithm based on structure of benzene ring is proposed.The algorithm takes advantage of the symmetry of the structure of benzene ring,reducing numbers of the ＂neighbors＂nodes so as to achieve goal of reducing energy consumption of fault detection.It also extends the network lifetime.The algorithm is tested by OMNeT ＋ ＋ in simulation environment.Test result shows that the algorithm costs lower energy consumption and higher network connectivity and scalability compared with other algorithms.
出处
《传感器与微系统》
CSCD
北大核心
2012年第11期125-127,131,共4页
Transducer and Microsystem Technologies
基金
国家自然科学基金资助项目(61170277)
上海市教委科研创新基金资助项目(02120557)
关键词
无线传感器网络
苯环结构
故障检测
wireless sensor networks（WSNs）
benzene ring structure
fault detection
