无线传感器网络中的簇头节点能耗平衡策略

无线传感器网络（WSNs）具有集中式数据收集和多对一数据通信等特点，使得越靠近汇聚节点的簇头节点能耗越大，最终导致网络中心出现能量空洞。提出一种基于簇内节点分配的簇头节点能耗平衡策略，根据WSNs的分簇汇聚拓扑结构，分析了其中簇头节点的能量消耗情况；在此基础上，通过在各簇内分配一定数量的基本节点，并成比例地增加附加节点的方式，使网络中各簇头节点的能量消耗相等。仿真结果表明：该策略能够适应网络规模和负载的动态变化，最终达到平衡簇头节点能耗的目的。

Energy balance strategy for cluster-head nodes in wireless sensor networks

Wireless sensor networks(WSNs) are characterized by centralized data gathering and many to one data communication pattern.That means the energy consumption of cluster-head nodes which near to the sink node is greater.Aiming at the problem of energy hole,an energy consumption balance strategy for cluster-head nodes is proposed based on distributing nodes in each cluster.According to the clustering aggregation topology in WSNs,the energy consumption of cluster-head nodes is analyzed and the basic nodes and co...