A Fault-recovery Routing Approach for Loop-based Clustering WSN

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Clustering has been used as an effective approach to saving energy and providing better scalability for Wireless Sensor Networks (WSN). Most of the existing methods for clustering use a star-based topology while the newly proposed loop-based topology brings some unusual advantages. In this paper, we present a loopbased clustering method for WSN with an improved mechanism. Based on the data flow characteristics of WSN, we design an algorithm to release the hop information from the sink node to all nodes in a fully distributed way, and design the routing protocol based on the information. Considering failure recovery, the paper proposes a recovery algorithm to overcome node failure and communication failure. The simulation results showthat both algorithms have low communication and storage overhead and meet constraints on low energy consumption and low bandwidth of WSN while improving the fault-tolerance capability.
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