无线传感器网络基于能量和距离的分簇路由算法研究  

Research on Energy and Distance Clustering Routing Algorithm in Wireless Sensor Network

作　　者：谢妙[1] 

机构地区：[1]玉林师范学院计算机科学与工程学院,玉林537000

出　　处：《现代计算机（中旬刊）》2012年第8期21-24,44,共5页Modern Computer

基　　金：广西省自然科学基金资助项目(No.0832101);玉林师范学院青年科研项目(No.2010YJQN27)

摘　　要：0引言研究无线传感器网络节点能耗和生存周期问题。详细分析经典分簇路由协议Leach的不足,针对其不足提出一种基于能量和距离的分簇路由算法。算法根据通信过程中的能量损耗重新计算了最优分簇数,簇首的选择充分考虑节点剩余能量,同时,簇首间根据通信距离的长短采用基于阈值的单跳与多跳相结合的通信方式。最后在NS2平台上进行仿真。仿真结果表明,与Leach算法相比,改进算法综合考虑了能量和距离因素,能有效地均衡节点能耗,提高能量的有效性,从而延长网络的生存周期。Studies the wireless sensor network node energy consumption and lifetime. Aiming at the Leaches shortcomings, proposes an energy and distance clustering routing algorithm （EDCR）. EDCR based on energy consumption recalculates the optimal number of clusters. When cluster heads are selected, a residual energy factor must be considered, and the cluster heads send data to the base station in single-hop and multi-hop mode based on the threshold value. Simulation result of NS2 platform shows that the EDCR algorithm compared with Leach, it considers energy and distance factors, can reduce energy consumption, balance energy consumption among clus- ter heads and prolong the network lifetime.

关 键 词：无线传感器网络 路由协议 簇 能量均衡 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]