无线传感器网络LEACH算法的改进研究

Research on improvemen of LEACH algorithm for wireless sensor networks

针对LEACH算法节点生命周期短和能耗不均衡的问题,提出了一种改进的LEACH算法。算法在簇头节点选择时综合考虑节点剩余能量和当前位置问题,使簇头的分布更均匀;同时在估算最优簇头数的基础上,改进了分簇方法,减少了分簇次数,节省了网络能量消耗。仿真实验表明,改进的LEACH算法使整个网络能耗更加均衡,延长了无线传感器网络的生命周期。

Aiming at the defects of LEACH(Low Energy Adaptive Clustering Hierarchy)nodes short life cycle and consumption imbalance,the paper proposes an improved algorithm of LEACH.The algorithm considers the residual energy and current position of the node in the selection of cluster head node,which can be more evenly distributed cluster head.On the basis of estimating the optimal cluster number,the clustering method is improved,the number of clustering is reduced,and the network energy consumption is saved.The simulation experiment shows that the improved LEACH algorithm makes the whole network energy consumption more balanced and increases the life cycle of the wireless sensor network.