分簇水声传感器网络簇头选举算法优化

摘要

In order to solve the problem of high energy consumption caused by the high degree of freedom and une?ven distribution of the cluster?head nodes in underwater acoustic sensor networks ( UASNs) , this paper presents a distributed low energy adaptive clustering hierarchy ( LEACH) protocol algorithm based on clustering optimization and energy consumption balance. In this algorithm, the distributed cluster?heads election mechanism is improved by increasing the number of elections in each round and introducing the optimal cluster?radius control strategy, which optimizes the distribution and decreases the degree of freedom of the cluster?head nodes. Simulation results show that this improved LEACH protocol can balance the energy and prolong the survival period of the network. Therefore it performs better in terms of energy consumption than the traditional protocol in UASNs.%针对水声传感器网络分簇协议中簇头数量自由度高以及分布不均所导致能量消耗过多的缺陷,提出一种基于优化分簇的、能耗均匀的分布式LEACH(low energy adaptive clustering hierarchy)协议.改进分布式簇头选择机制,每轮中簇头选举由一次选举改为多次选举,引入最优成簇规模控制策略,实现簇头节点的位置分布优化,提高簇头数目稳定性,实现均衡网络能量.仿真结果表明,该改进LEACH协议能解决水声传感器网络分簇协议存在的能量问题,使网络的能量消耗更加均匀,并在一定程度上延长网络的生存期限.