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通过分析不同类型节点的失效对于网络覆盖效率的影响,提出一种具有能量和覆盖意识的无线传感器网络分簇算法.该算法不依赖节点的物理位置信息,优先选取部署密度较高区域的节点担任簇首,当簇首的剩余能量低于设定阈值时实施簇首迁移,以均衡网络能耗,降低节点的死亡率.进一步分析了算法复杂度和节点最优广播半径的选取.仿真结果表明,所提出的算法可有效改善网络运行中的覆盖性能,延长网络寿命.
By analyzing the impact of different types of nodes’ failure on network coverage efficiency, a wireless sensor network clustering algorithm with energy and coverage awareness is proposed, which does not rely on the physical location information of nodes and preferentially selects nodes with higher deployment density When the residual energy of the cluster head is lower than the set threshold, cluster head migration is performed to balance the network energy consumption and reduce the node mortality rate. The complexity of the algorithm and the node optimal broadcast radius selection are further analyzed. The simulation results show that , The proposed algorithm can effectively improve the coverage performance in network operation and prolong the network lifetime.