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基于节点综合故障模型的无线传感器网络容错拓扑控制方法 被引量:8

The Fault-tolerant Topology Control Approach in Wireless Sensor Networks Based on Integrated Fault Model of Node
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摘要 鉴于无线传感器网络(WSNs)存在节点能量受限和恶劣环境造成的节点随机失效频繁的特点,该文提出了面向节点能量耗尽和随机失效综合故障优化的WSNs容错拓扑控制方法。该方法利用节点能量耗尽及随机失效信息进行综合故障建模,通过获取满足网络生命期和综合故障容忍能力双重需求的节点度取值,得到可最大限度延长网络生命期,且能够有效提高对节点能量耗尽及随机失效综合容忍能力的目标拓扑。实验结果证实了方法的有效性。 Wireless Sensor Networks (WSNs) have such characteristics as energy depletion and nodes random failure fault caused by harsh environment. So in this paper, a Fault-tolerant Topology Control Approach (FTCA), which can optimize node energy and random failure simultaneously is proposed. This method can built the fault model based on the node energy depletion and random failure, find the node degree parameter which can satisfy the double requirements of the network lifetime and the tolerance to integrated fault, obtain the target topology to maximize the lifetime, and improve the fault tolerance to the energy depletion and random failure of nodes. Finally, the experimental results show the effectiveness of the FTCA algorithm.
出处 《电子与信息学报》 EI CSCD 北大核心 2012年第10期2375-2381,共7页 Journal of Electronics & Information Technology
基金 河北省自然科学基金(F2011203100) 河北省高等学校科学研究计划(2010162)资助课题
关键词 无线传感器网络 容错 拓扑控制 能量耗尽 随机失效 Wireless Sensor Networks (WSNs) Fault-tolerant Topology control Energy depletion Random failure
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参考文献18

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