无线多跳传感器网络中能量消耗均衡分簇策略  

Energy-balanced clustering scheme for multi-hop wireless sensor networks

作　　者：张剑[1] 黄本雄[1] 张帆[1] 涂来[1] 

机构地区：[1]华中科技大学电子与信息工程系,湖北武汉430074

出　　处：《华中科技大学学报（自然科学版）》2008年第4期5-8,共4页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(60572047)

摘　　要：针对在无线多跳传感器网络中节点间能量消耗不均衡、中继节点容易过早失效的问题,基于几何规划提出一种自适应的分簇算法.该算法通过节点的能量水平和位置来调节其竞争簇头的概率,同时通过簇头的能量水平和离汇聚点的距离调节簇头"管辖"范围.仿真表明:本算法很好地均衡了网络能量开销,使得网络的生命周期延长了25%,稳定周期延长了50%.In multi-hop wireless sensor networks, the nodes relaying the other node＇s data will die early because the energies among all nodes were consumpted unevenly. An energy-efficient unequal clusting mechanism is proposed by using geometric programm, in which the probability of the node was adjucted to become cluster-head and the clusters size by the nodes＇ energy level and the distance from the sink. The simultion results show that this clustering mechanism can balance the energy consumption well among all nodes and increase the lifetime effectively by 25 % and the networks stable-time by 50 %.

关 键 词：无线多跳传感器网络 分簇 几何规划 能量均衡 

分 类 号：TN803[电子电信—信息与通信工程]