异构无线传感器网络的分簇算法

Clustering Algorithm for Heterogeneous Wireless Sensor Networks

针对LEACH算法缺乏对网络中能量异构性的考虑问题,为延长网络稳定周期,均衡节点能量消耗,提出一种改进的分簇算法。算法充分利用高级节点的能量优势,在簇头选举阶段,优先选举高级节点当选簇头,改善异构无线传感器网络中的簇头选举机制。仿真结果表明,改进后的算法均衡了网络能量消耗,延长了网络的稳定周期和一半节点死亡轮数。

LEACH lacks the consideration of energy heterogeneity in the network.In order to prolong the network stability period and balance the energy consumption of nodes,an improved clustering algorithm was proposed.The algorithm makes full use of the energy advantages of advanced nodes.In the cluster head election stage,it elects advanced nodes to be cluster head preferentially,which improves cluster head election mechanism in heterogeneous wireless sensor networks.The simulation results show that the improved algorithm balances energy consumption of network,prolongs stability period of network and also the death rounds of half nodes.