无线传感网络中基于节点权值划分的功率控制算法  

A power control algorithm basing on weight measurement of nodes in wireless sensor networks

作　　者：曾治国[1,2] 廖志芳[1] 

机构地区：[1]中南大学信息科学与工程学院,湖南长沙410075 [2]湖南科技大学研究生处,湖南湘潭411201

出　　处：《湖南科技大学学报（自然科学版）》2009年第2期66-69,共4页Journal of Hunan University of Science And Technology：Natural Science Edition

基　　金：国家自然科学基金资助项目(69975003);湖南省自然科学基金资助项目(06JJ50143)

摘　　要：无线传感器网络由大量能量有限的微型传感器节点组成,因此,如何在保证无线传感网络中节点通讯区域覆盖质量和连通性质量的同时,又能延长无线传感网络的生命周期至关重要,为了解决这一问题,引入了区域划分对传感器网络节能效率影响的数学模型,提出一种基于节点权值划分的功率控制算法(A power control algorithm basing on weight measurement of nodes,简称NWMP),并详细论述了该算法的设计思想及步骤,最后,通过与其它功控算法的模拟仿真对比分析和性能评估,证明该算法能提高无线网络的网络吞吐量和延长网络的寿命.A wireless sensor networks is composed by many nodes of power-limited micro sensors, therefore, it＇s critical to prolong the using time without reducing the degree of communicating areas covered and connectivity. To solve that, a mathematic model is introduced to measure the effect and efficiency on saving energy through area partition, a power control algorithm based on weight measurement of nodes （NWMP）, also it＇s design idea and process are detailed, finally, through simulation and analysis compared with other power control aJgorithms, it is proved that the algorithm can upgrade the throughput of wireless networks and prolong their using time. 5figs., 10refs.

关 键 词：无线传感器网络 权值划分 频率 吞吐量 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]