数据采集系统的网络寿命最大化

针对无线传感器网络的数据采集系统容易形成网络空洞的问题，对数据采集系统提出了一种新的使网络寿命最大化的策略．首先将网络进行环形分割，然后利用能量均衡公式确定每个环内节点的数量，以实现环间能量消耗均衡．提出了环内能量平衡路由算法，以实现环内节点能耗平衡．与能量均衡数据采集策略（EBDG）、非均匀部署能量均衡策略（NDEB...

Maximization of Network Lifetime in Data Gathering Systems

To avoid network holes which are easy to form in a wireless sensor network,an energy efficient algorithm based on load balancing is proposed for a data gathering system.In the algorithm,the network is firstly divided into many concentric rings,and then the number of nodes in each ring is determined in terms of balancing energy consumption between the rings.Finally,an energy-balanced routing algorithm is proposed to achieve intra-ring load balancing.Simulation results show that the proposed algorithm has longer network lifetime and outperforms the existing energy-balanced data gathering(EBDG) and non-uniform deployment energy balance(NDEB) algorithms.Since the algorithm can balance the overall energy consumption,it is robust to the number of nodes.