基于能量均衡的WSN多跳非均匀分簇路由算法  

Energy-Balanced Multi-hop Uneven Clustering Routing Algorithm for Wireless Sensor Networks

作　　者：薛晓亮 祁荣宾[1] 钱锋[1] 

机构地区：[1]化工过程先进控制和优化技术教育部重点实验室,华东理工大学信息科学与工程学院,上海200237

出　　处：《华东理工大学学报（自然科学版）》2011年第3期352-358,共7页Journal of East China University of Science and Technology

基　　金：国家杰出青年科学基金(60625302);国家自然科学基金(20876044);上海市基础研究重点项目(10JC1403500);上海市重点学科建设项目(B504)

摘　　要：在无线传感器网络路由协议中采用多跳通信的方式能够减少通讯距离、增强网络通讯的稳定性并提高网络能量利用效率,但是,由于靠近汇聚节点的簇头需要转发大量数据,容易导致能量快速衰竭而失效,造成"能量空洞"现象。提出了一种新型的基于能量均衡的多跳非均匀分簇路由算法(MUCRA),采用逐层成簇的策略,簇头以一定的半径广播分层信号,划分下一层网络区域非均匀层次,普通的传感器节点和簇头根据分层信息选择合适的网络路径。仿真实验结果表明:与经典的LEACH协议及EEUC协议相比,该算法能有效平衡网络负载,缓解"能量空洞"问题。In wireless sensor networks（WSN）,multi-hop communications techniques in routing protocols can reduce the communication distance,enhance the stability of network communication,and improve the efficiency of network utilization.However,the cluster heads close to the sink node are required to transmit large amount of data,which easily results in energy failure and yields an ＂energy hole＂ phenomenon.By adopting the hierarchical clustering strategy,this paper proposes an energy-balanced multi-hop uneven clustering routing algorithm（MUCRA）.In the present approach,the cluster heads broadcast hierarchical signals with a certain radius for dividing network into uneven layers such that both normal sensor nodes and cluster heads choose the appropriate network path via hierarchical information.Simulation experiments show that,compared with LEACH and EEUC,the proposed algorithm can effectively balance the network.

关 键 词：无线传感器网络 多跳 非均匀分簇 能量均衡 

分 类 号：TN92[电子电信—通信与信息系统]