计算机工程Issue(3)：32-36,5.DOI:10.3969/j.issn.1000-3428.2015.03.006
基于距离补偿模型的改进DV-Hop定位算法
Improved DV-Hop Localization Algorithm Based on Distance Compensation Model
摘要
Abstract
The traditional DV-Hop localization algorithm estimates the average hop distance with the physical distance between the anchor nodes instead of actual transmission distance,and the distance error between the two kinds of distance undoubtedly leads to the inaccuracy of the average hop distance and relatively high localization error. Aiming at this problem,the improved algorithm is proposed. The reason of error between the physical distance and actual transmission distance is analyzed in the paper, and is summarized as the asymmetry of distance resulted from the nodes random distribution,as well as the deviation degree between the actual transmission path and the physical distance, and the distance compensation model is built based on the asymmetry and deviation degree to make the physical distance closer to the transmission distance. The improved algorithm increases no extra hardware and the complexity of the DV-Hop. The simulation results show that the improved algorithm compensates the distance between the anchor nodes,and improves the localization accuracy to the unknown nodes.关键词
距离补偿/估计距离/不均匀度/偏离度/DV-Hop定位算法/无线传感器网络Key words
distance compensation/estimated distance/asymmetry degree/deviation degree/DV-Hop positioning algorithm/Wireless Sensor Network( WSN)分类
信息技术与安全科学引用本文复制引用
高文根,陈其工,江明,李云飞,牛明强..基于距离补偿模型的改进DV-Hop定位算法[J].计算机工程,2015,(3):32-36,5.基金项目
国家自然科学基金资助项目(61271377,61172131)。 （61271377,61172131）
