摘要
提出了一种基于正六边形网格的分层网络结构,研究了在监测区域面积给定情况下的最优网络分层问题.通过理论分析,获得了给定能量模型下的最优分层算法,并进行了仿真计算.仿真结果表明采用最适度分层数进行划分后,网络寿命明显得到延长.将网络中的冗余节点按最优分布条件进行分布,使得网络寿命最终能够满足变电站自动化系统的要求.
A layered network architecture based on regular hexagonal cells is introduced,and the optimal layers are studied in given monitoring areas.According to theoretical analysis,an optimal layering algorithm is obtained with defined energy model.Simulation analysis is conducted,and the results show that the network life-time can be prolonged effectively with the optimum layers.In addition,the redundant nodes in network are distributed with optimal distribution conditions,enabling the network life-time to ultimately meet the requirements of substation automation system applications.
出处
《信息与控制》
CSCD
北大核心
2007年第5期529-533,共5页
Information and Control
基金
重庆市自然科学基金资助项目(CSTC2007BA3001)
关键词
变电站自动化
无线传感器网络
最优分层
网络寿命
冗余节点
substation automation
wireless sensor network
optimum layer
network life-time
redundant node