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节点信誉相关的无线传感器网络故障检测

DOI: 10.13190/jbupt.201201.41.xionga, PP. 41-45

Keywords: 无线传感器网络,故障检测,信誉,Dirichlet分布

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Abstract:

提出一种基于节点信誉的无线传感器网络故障检测算法.算法为每个传感器节点建立了基于Dirichlet分布的信誉函数,整个算法由检测模块、信誉更新模块和故障判定模块3部分组成.检测模块计算节点当前时刻的健康等级;信誉更新模块负责维护、更新节点的信誉值;故障判定模块则对是否发生节点故障和敏感事件进行判定.仿真结果表明,该算法具有较高的故障检测精度,在传感器网络故障节点达到25%的情况下,仍能检测出9483%的故障节点,而误警率则可以保持在5%以下.

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