无线传感器网络通信半径动态调整的能耗均衡策略  

Energy Balanced Scheme Based on Variable Transmission Range for Wireless Sensor Networks

作　　者：胥楚贵[1] 邓晓衡[2] 邹豪杰[1] 

机构地区：[1]湖南工业大学计算机与通信学院,湖南株洲412008 [2]中南大学信息科学与工程学院,长沙410083

出　　处：《传感技术学报》2009年第5期712-716,共5页Chinese Journal of Sensors and Actuators

基　　金：国家自然科学基金资助项目(60873082);湖南省科技计划项目资助(2007RS4001);中国博士后科学基金资助(20060400879);教育部博士点新教师基金资助(200805331109)

摘　　要：针对无线传感器网络中分簇算法采用多跳通信方式时,靠近汇聚节点的簇首节点由于转发大量数据而导致自身能量消耗过快且易失效,从而造成网络分割,形成"热区"问题,提出了一种无线传感器网络通信半径动态调整的能耗均衡策略。该算法将传感器网络合理分区,通过动态调整分区通信半径选择能耗均衡的簇结构。仿真实验表明该算法可以把能量均衡地分摊到网络的各个节点,并具有较高的能耗效率,延长了网络寿命,减缓了网络的"热区"问题,性能优于HEED算法。Employing clustering algorithms can improve the scalability of wireless sensor networks. To solve the ＂hot spot＂problem caused by the cluster heads close to the sink, which are burdened with heavy relay traffic via multi-hop communication and tend to die earlier and that leads to the network being partitioned, an energy balanced scheme based on variable transmission range for wireless sensor networks（EBS- BVTR） is presented. In EBS-BVTR, the entire network has been divided into some regions reasonably , thus, energy consumption balanced cluster architecture is chosen based on variable cell transmission range. Compared with HEED, Simulation results show that EBS-BVTR can allocate energy to each node of network regularly more efficiently, extend lifetime of network, and alleviate ＂hot spot＂ problem of network.

关 键 词：无线传感器网络 分簇 通信半径 能耗均衡 

分 类 号：TP393.03[自动化与计算机技术—计算机应用技术]