无线传感器网络节点定位算法研究  

Node Localization Algorithm in Wireless Sensor Networks

作　　者：曾迪[1] 余瑶[1] 

机构地区：[1]重庆邮电大学移动通信技术重点实验室,重庆400065

出　　处：《数字通信》2014年第3期22-27,共6页Digital Communications and Networks

基　　金：重庆市科委项目(CSTC2012jjA40044;cstc2013yykfA40010)

摘　　要：无线传感器网络(WSN)作为一种全新的信息获取和处理技术,拥有十分广泛的应用前景,其中,节点定位是重要的核心技术之一,同时也是无线传感器网络技术及应用的最核心的技术基础。目前已有的定位方法主要是按照基于测距和非基于测距进行分类总结。在研究大量相关文献的基础上,用一种全新的视角对目前现有的定位方法进行重新分类,介绍了WSN无线信号衰减模型,提出一种基于RSSI校验的加权质心节点定位算法,且与相关定位算法进行了比较分析和仿真实验得出结论。Wireless sensor networks （WSN） as a new information access and processing technology, has a very wide range of applications where node localization is one of the important core technology, while the core technology base is also a wire- less sensor network technology and application. At present, according to the positioning method which is mainly based on distance and non-distance based classification summary, this paper studies a number of related documents, based on a whole new perspective on currently available positioning methods reclassified and presented. The WSN radio signal attenua- tion model is proposed based on weighted centroid localization algorithm RSSI efficacy, and the positioning algorithm associ- ated with a comparative analysis and simulation experiments is concluded.

关 键 词：无线传感器网络 节点定位 RSSI 质心算法 

分 类 号：TN929.5[电子电信—通信与信息系统] TP212.9[电子电信—信息与通信工程]