基于无线传感器网络的能量高效的非均匀分簇算法  

An Energy-Efficient Unequal Clustering Algorithm Based on Wireless Sensor Networks

作　　者：万润泽[1] 缑西梅[2] 雷建军[1] 

机构地区：[1]湖北第二师范学院计算机学院,湖北武汉430205 [2]中原工学院计算机科学系,河南郑州450007

出　　处：《计算机工程与科学》2009年第9期32-35,共4页Computer Engineering & Science

基　　金：湖北省高校中青年科技创新团队项目(T200904)

摘　　要：通过分析无线传感器网络自身工作环境的特点,我们对网络中的簇结构大小进行非均匀分簇,根据距离Sink的远近不同,其簇首的覆盖范围大小也不同。这样,对于距离Sink比较近的簇首来说,可以减轻簇内能量消耗的负担,保留一部分能量用于簇间的通信,从而使网络中的节点能量消耗分布相对均匀。通过建立网络节点分布模型,求出了节点能量均衡与多层分簇层数的最优解,提高了能量的利用率,有效地延长了整个无线传感器网络的生命周期。Through an analysis of the characteristics of the working envwonment in wireless sensor networks, the network is divided into many unequal clusters and then the head clusters are in charge of different geographical scopes according to different distances to the sink. For the head cluster near the sink relatively,it retains part of the energy used for inter-cluster communications,thus the energy consumption of WSN is relatively evenly distributed. This paper establishes the node distribution model and obtains the optimal solution between the balancing of the nodes＇ energy consumption and the stratified layers of clustering, thus improve energy utilization and prolong the life of the entire wireless sensor networks effectively.

关 键 词：无线传感器网络 非均匀分簇算法 能量均衡 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]