无线传感器网络选择性DV-Hop定位算法  

Selective DV-Hop localization algorithm for wireless sensor networks

作　　者：罗维[1] 姜秀柱[1] 盛蒙蒙[2] 

机构地区：[1]中国矿业大学计算机科学与技术学院,江苏徐州221116 [2]北京理工大学信息与电子学院,北京100081

出　　处：《传感器与微系统》2012年第3期71-73,77,共4页Transducer and Microsystem Technologies

基　　金：国家创新研究群体科学基金资助项目(60421002)

摘　　要：针对传统的矢量跳距(DV-Hop)定位算法平均定位误差大的问题,提出了一种具有选择性的改进DV-Hop定位算法。该算法首先剔除长距离信标节点信息,更新最小跳数与平均每跳距离,再次根据信标节点的实际距离和估计距离的误差进一步修正平均每跳距离。仿真结果表明:选择性DV-Hop定位算法能有效地减小平均定位误差,适应各种网络。Aiming at large positioning error rate of conventional distance vector-hop （DV-Hop）localization algorithm, an improved DV-Hop localization algorithm called selective DV-Hop localization algorithm is put forward. SDV-Hop localization algorithm eliminates the information of long-distance beacon nodes, updates the minimum number of hops and the average hop distance. The average hop distance is corrected according to the distances error of the beacon nodes between the calculated and estimated distances. The simulation results show that the selecive DV-Hop localization algorithm can effectively reduce the average location error rate and adapt to a variety of network.

关 键 词：无线传感器网络 矢量跳距定位算法 平均每跳距离 选择性矢量跳距定位算法 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]