基于Voronoi图的无线传感器网络K覆盖算法

针对无线传感器网络(WSN)在随机高密度部署节点情况下的多重覆盖问题，提出一个基于Voronoi图的K覆盖算法。该算法利用邻居节点信息计算Voronoi覆盖邻居节点集，构建有向Voronoi覆盖关系图，通过调整关系图中的节点状态实现K覆盖。仿真结果表明，该算法能正确判断网络覆盖率，连通K覆盖的近似最小活动节点集数目少于CCP算法。

K Coverage Algorithm in Wireless Sensor Network Based on Voronoi Diagram

For the problem of multi-coverage under the case that the sensor nodes are high-density deployed in Wireless Sensor Network（WSN）, this paper proposes a k-covering algorithm based on Voronoi diagram. This algorithm uses the information of neighbors nodes to establish the set called Voronoi Coverage Neighbor（VCN） node set, then builds a directed graph reflecting the relationship of the coverage. According to the requirement coverage of network, adjusts the state of nodes to achieve K coverage. Simulation results show that the algorithm can correctly determine the network coverage, and the number of approximate minimum active nodes is superior to Coverage Configuration Protocol（CCP） algorithm.