传感技术学报2011，Vol.24Issue(1)：83-87,5.DOI:10.3969/j.issn.1004-1699.2011.01.018
一种改进的无线传感器网络DV-Hop定位算法
An Improved DV-Hop Localization Algorithm for Wireless Sensor Networks
摘要
Abstract
Conventional DV-Hop localization algorithm considers the average hop distance as the expected distance, so it will lead to larger error in position. In response to this problem, an improved DV-Hop localization algorithm is proposed. In the improved algorithm, anchor nodes correct the average hop distance by the total error between calculated distances and estimated distances. Improving the method of nodes coordinates computing, we will not adopt traditional Triangulation algorithm but use 2 - D Hyperbolic location algorithm. Then,we will get the ultimate node coordinates which includes error correction. It is closer to the actual coordinates. The simulation results show that the improved algorithm can improve the localization accuracy effectively without increasing hardware consumption in nodes comparing it with conventional DV-Hop algorithm.关键词
传感器网络/DV-Hop定位算法/每跳平均距离/双曲线定位算法Key words
sensor networks/ DV-Hop localization algorithm/ average hop distance/ hyperbola location algorithm分类
信息技术与安全科学引用本文复制引用
石为人,贾传江,梁焕焕..一种改进的无线传感器网络DV-Hop定位算法[J].传感技术学报,2011,24(1):83-87,5.基金项目
博士点基金资助(20060611010) （20060611010）
国家水体污染控制与治理科技重大专项资助(2009ZX07528003) （2009ZX07528003）
