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| The Fault-tolerant Topology Control Approach in Wireless Sensor Networks Based on Integrated Fault Model of Node |
| Yin Rong-rong Liu Bin Liu Hao-ran Hao Xiao-chen |
| Institute of Electrical Engineering, Yanshan University, Qinhuangdao 066004, China |
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Abstract 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.
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Received: 31 March 2012
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Corresponding Authors:
Liu Bin
E-mail: liubin@ysu.edu.cn
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2012, Vol. 34 
