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一种基于非均匀分簇的无线传感器网络路由协议
引用本文:李成法,陈贵海,叶懋,吴杰.一种基于非均匀分簇的无线传感器网络路由协议[J].计算机学报,2007,30(1):27-36.
作者姓名:李成法  陈贵海  叶懋  吴杰
作者单位:1. 南京大学软件新技术国家重点实验室,南京,210093
2. 美国佛罗里达大西洋大学计算机科学与工程系,佛罗里达波卡雷顿,33431
基金项目:国家重点基础研究发展计划(973计划) , 国家自然科学基金 , 江苏省自然科学基金 , 教育部高等学校优秀青年教师教学科研奖励计划
摘    要:在路由协议中利用分簇技术可以提高无线传感器网络的可扩展性.当簇首以多跳通信的方式将数据传输至数据汇聚点时,靠近汇聚点的簇首由于转发大量数据而负载过重,可能过早耗尽能量而失效,这将导致网络分割.该文提出一种新颖的基于非均匀分簇的无线传感器网络多跳路由协议.它的核心是一个用于组织网络拓扑的能量高效的非均匀分簇算法,其中候选簇首通过使用非均匀的竞争范围来构造大小不等的簇.靠近汇聚点的簇的规模小于远离汇聚点的簇,因此靠近汇聚点的簇首可以为簇间的数据转发预留能量.模拟实验结果表明,该路由协议有效地平衡了簇首的能量消耗,并显著地延长了网络的存活时间.

关 键 词:无线传感器网络  能量高效  非均匀分簇  路由  多跳通信  非均匀  分簇算法  无线传感器  网络拓扑  路由协议  Wireless  Sensor  Networks  Routing  Protocol  存活时间  延长  能量消耗  平衡  协议有效  结果  模拟实验  数据转发  规模  大小  构造  竞争范围  使用
修稿时间:2005-09-272006-04-24

An Uneven Cluster-Based Routing Protocol for Wireless Sensor Networks
LI Cheng-Fa,CHEN Gui-Hai,YE Mao,WU Jie.An Uneven Cluster-Based Routing Protocol for Wireless Sensor Networks[J].Chinese Journal of Computers,2007,30(1):27-36.
Authors:LI Cheng-Fa  CHEN Gui-Hai  YE Mao  WU Jie
Institution:1,State Key Laboratory for Novel Software Technology, Nanjing University, Nanjing 210093;2.Department of Computer Science and Engineering, Florida Atlantic University, Boca Raton , FL 33431 USA
Abstract:Employing clustering techniques in routing protocols can increase the scalability of wireless sensor networks. When cluster heads transmit their data to the data sink via multi-hop communication, the cluster heads closer to the sink are burdened with heavy relay traffic and tend to die early, causing network partitions. This paper presents a novel uneven cluster-based routing protocol for wireless sensor networks. Its core is an Energy-Efficient Uneven Clustering (EEUC) algorithm for network topology organization, in which tentative cluster heads use uneven competition ranges to construct clusters of uneven sizes. The clusters closer to the sink have smaller sizes than those farther away from the sink, thus the cluster heads closer to the sink can preserve some energy for the inter-cluster data forwarding. Simulation results show that the routing protocol effectively balances the energy consumption among cluster heads and achieves an obvious improvement on the network lifetime.
Keywords:wireless sensor networks  energy efficient  uneven clustering  routing  multi-hop communication  
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