文献类型：期刊文献

中文题名：基于RSSI的室外无线传感网络自定位算法

英文题名：Outdoor Wireless Sensor Network Self-localization Algorithm Based on RSSI

作者：金卫民[1];神显豪[2]

机构：[1]绍兴文理学院工学院,绍兴312000;[2]北京理工大学机电工程与控制国防重点实验室,北京100081

年份：2008

卷号：34

期号：13

起止页码：89

中文期刊名：计算机工程

外文期刊名：Computer Engineering

收录：CSTPCD、、北大核心2004、Scopus、CSCD2011_2012、北大核心、CSCD

语种：中文

中文关键词：无线传感网络;节点自定位;信标节点

外文关键词：Wireless Sensor Network（WSN）; self-localization of nodes; anchor nodes

中文摘要：针对室外无线传感网络的节点自定位问题,对野外环境无线电传播路径损耗模型进行分析,提出加权质心定位算法,并结合优选信标节点的规则进一步提高了节点定位精度。加权质心定位算法计算简单,定位过程中节点间通信开销小,定位精度较极大似然估计法高,仿真结果表明其基本满足应用要求。

外文摘要：Self-localization of nodes is one of the key technologies for application of Wireless Sensor Network（WSN）. By analyzing the model of waves propagation in outdoor, this paper provides a weighted centroid localization algorithm. Combined with the rules of selecting fine nodes, it uses weight coefficient to evaluate position accuracy of nodes. This algorithm is simple and no communication is needed while locating and its location accuracy is higher than maximum likelihood estimation. The simulation using Matlab shows that this algorithm basically meets the application＇s need.