计算机工程
計算機工程
계산궤공정
COMPUTER ENGINEERING
2014年
2期
110-113,118
,共5页
无线传感器网络%传感器故障检测%分布式%大规模网络%分簇%时空相关性
無線傳感器網絡%傳感器故障檢測%分佈式%大規模網絡%分簇%時空相關性
무선전감기망락%전감기고장검측%분포식%대규모망락%분족%시공상관성
Wireless Sensor Network(WSN)%sensor fault detection%distributed%large scale network%clustering%temporal and spatial correlation
针对大规模无线传感器网络(WSN)中故障检测准确率降低,并产生较大通信负载的问题,根据传感器节点的时空相关性特点,提出一种基于簇的分布式传感器故障检测算法。通过邻居节点间的数据交换和互相测试检测簇首节点,并以正常簇首节点作为参照诊断故障节点。性能分析与实验结果表明,在大规模 WSN 中,该算法具有良好的故障检测能力和较低的通信负载,在邻居节点数较少、节点故障率较高的情况下,能达到98%以上的故障检测准确率,并保持较低的能耗水平。
針對大規模無線傳感器網絡(WSN)中故障檢測準確率降低,併產生較大通信負載的問題,根據傳感器節點的時空相關性特點,提齣一種基于簇的分佈式傳感器故障檢測算法。通過鄰居節點間的數據交換和互相測試檢測簇首節點,併以正常簇首節點作為參照診斷故障節點。性能分析與實驗結果錶明,在大規模 WSN 中,該算法具有良好的故障檢測能力和較低的通信負載,在鄰居節點數較少、節點故障率較高的情況下,能達到98%以上的故障檢測準確率,併保持較低的能耗水平。
침대대규모무선전감기망락(WSN)중고장검측준학솔강저,병산생교대통신부재적문제,근거전감기절점적시공상관성특점,제출일충기우족적분포식전감기고장검측산법。통과린거절점간적수거교환화호상측시검측족수절점,병이정상족수절점작위삼조진단고장절점。성능분석여실험결과표명,재대규모 WSN 중,해산법구유량호적고장검측능력화교저적통신부재,재린거절점수교소、절점고장솔교고적정황하,능체도98%이상적고장검측준학솔,병보지교저적능모수평。
The fault detection in large scale Wireless Sensor Network(WSN) has low performance in accuracy and can bring high communication load. Considering temporal and spatial correlation in WSN, a novel cluster-based sensor fault detection algorithm is proposed. The algorithm provides a way to identify faulty sensors by finding normal cluster heads and using its as reference to infer detection statuses of its neighbors. Performance analysis and experimental results show that the algorithm has good fault detection ability and lower communication load, it can achieve over 98% fault detection accuracy and keep lower energy consumption even in the case of smaller neighboring nodes and higher node’s failure ratio.