一种基于LEACH的改进无线传感器网络路由协议

摘要

In order to reduce the energy consumption and prolong network lifetime in WSN(wireless sensor network),an improved protocol based on LEACH(low-energy adaptive cluster hierarchy) is proposed to solove the problems of cluster-head nodes selection and random clustering.Firstly,the protocol calcualtes the best clustering number in WSN,then integrates with genetic algorithm to cluster and chooses cluster-head nodes based on the nodes residual energy.Simulation results show that the improved protocol is much better than LEACH in energy consumption and lifetime.%为了在无线传感器网络(WSN)中降低能耗和提高网络生存期,针对LEACH协议中簇头选举不合理和随机分簇的不足,提出了一种LEACH的改进协议.该协议首先计算无线传感器网络的最佳分簇数量,然后与遗传算法相结合对网络进行分簇,再根据簇中节点的剩余能量等情况选出簇头节点.仿真结果表明,与经典的LEACH协议相比,改进后的协议减少了网络的能量消耗,延长了网络生命周期.