摘要
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)比较,本文提出的算法具有更高的网络寿命,且算法受节点数影响较小;由于算法能够平衡整体能量消耗,因此具有一定的鲁棒性.
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.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2012年第2期157-160,共4页
Journal of Northeastern University(Natural Science)
基金
国家高技术研究发展计划项目(2010AA101702)
国家自然科学基金资助项目(60774010
60274009)
关键词
数据采集
网络寿命
网络空洞
能量均衡
非均匀部署
data gathering
network lifetime
network hole
energy balance
non-uniformdeployment
