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

作　　者：彭刚[1] 刘戎[1] 

机构地区：[1]桂林空军学院,广西桂林541003

出　　处：《广西科学院学报》2012年第1期16-18,共3页Journal of Guangxi Academy of Sciences

摘　　要：针对无线传感器网络DV-Hop定位算法中信标节点与未知节点之间的平均跳距估算误差较大的问题,提出一种改进的DV-Hop算法并进行仿真检验。改进后的算法对传统算法中节点每跳距离选取进行了调整,还采用加权平均法计算节点平均每跳距离。仿真结果表明,改进的DV-Hop算法显著提高未知节点的定位精度。In order to solve the problem of large error in the estimation on the average hop distance between beacon nodes and unknown nodes,which in the DV-Hop localization algorithm for wireless sensor networks,an improved DV-Hop localization algorithm and simulation experiment are proposed.In the new algorithm,the calculation of average hop distance is improved and the average hop distance based on weighted disposal is refined.Simulation results demonstrate that the localization accuracy of unknown nodes is improved effectively in the new algorithm.

关 键 词：无线传感器网络 DV-HOP定位算法 平均每跳距离 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]