无线传感器网络中能量高效的自适应分簇算法

摘要

The energy of nodes in wireless sensor networks are limited,so the effective energy saving methods have become one of the most important focus of various key technology in wireless sensor networks.In order to reduce the energy consumption in clustering wireless sensor networks,an energy efficient algorithm of adaptive clustering for wireless sensor networks was proposed.The scheme firstly calculated the optimal number of cluster according to the principle of minimal energy consumption when transmitting the data,and then the network was made clustering according to regional clustering method.The cluster finally was selected according to node residual energy and the cost of the energy consumption of data transmission.The simulation and performance analysis results show that this scheme can reduce the energy consumption of nodes effectively and prevent the cluster nodes die due to energy consumption too fast.Thus,the proposed algorithm can prompt the stability and prolong the lifetime of network.%无线传感器网络中节点能量是受限的,高效的节能方法成为无线传感器网络中各种关键技术研究的重点之一.为有效降低分簇无线传感器网络在分簇时的能量消耗,给出一种能量高效的无线传感器网络自适应分簇算法.该方案首先是根据数据传输能量消耗最小原则计算出最优簇头节点数目,然后按照区域聚类方法进行分簇,最后在每个簇根据节点剩余能量和数据传输能耗代价选择簇头.仿真性能分析结果表明:所给方案可以有效降低节点能量消耗,防止簇头节点因能量消耗过快而过早失效.因此,该算法可以提升网络的稳定性,延长网络生命周期.