Research on Multiple Sinks Deployment in WSN Based on Local Density Clustering
Aiming at the problem of limited energy and short network lifetime in wireless sensor networks,an optimal deployment algo-rithm of multi-sinks based on node local density clustering is proposed under the consideration of network cost.Firstly,a clustering deci-sion function based on multi-attribute factors is constructed to determine the deployment location of sink nodes,and complete the cluste-ring of sensor nodes.Then,a data transmission path is searched and formed according to the criterion that the distance between the next hop node and the sink node is the shortest.Finally,the number of sink nodes is determined by maximizing the ratio of network lifetime to cost,and the optimal deployment of multi-sinks is completed.Compared with the existing algorithms,the simulation results show that the proposed algorithm can effectively prolong the network lifetime,and has higher ratio of network lifetime to energy consumption.
wireless sensor networkSink deploymentlocal density clusteringnetwork lifetime
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