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DV-Hop Localization Algorithm Based on Multi-mobile Beacon

REN Ming-ming,XIE Zhi-jun,JIN Guang,HE Jia-min   

  1. (Key Laboratory of Mobile Internet Application Technology of Zhejiang Province, College of Information Science and Engineering,Ningbo University,Ningbo 315211,China)
  • Received:2013-08-28 Online:2014-10-15 Published:2014-10-13

基于多移动信标的DV-Hop 定位算法

任明明,谢志军,金 光,何加铭   

  1. (宁波大学信息科学与工程学院浙江省移动网应用技术重点实验室,浙江宁波315211)
  • 作者简介:任明明(1986 - ),男,硕士研究生,主研方向:无线传感器网络;谢志军,副教授、博士;金 光、何加铭,教授、博士。
  • 基金资助:
    国家自然科学基金资助项目(60902097);浙江省自然科学基金资助项目(LY12F02013);浙江省科技厅重大科技专项基金资 助重点工业项目(2011C11042);宁波市自然科学基金资助项目(2012A610013,2012A610014);宁波大学研究生重点课程建设基金资助 项目(zdkc2012004)。

Abstract: Due to the serious dependence on the topology of the network in DV-Hop algorithm,a DV-Hop localization algorithm based on multi-mobile beacon called MMB-DV-Hop is proposed in this paper. The algorithm incorporates Range-based and Range-free algorithms by introducing multi-mobile beacons into the DV-Hop positioning network,and the beacons keep a certain relative position while traversing the entire network and ranging with RSSI to provide information to unknown nodes to estimate locations. Simulation results show that the proposed algorithm has better locating performance in positioning accuracy by reducing the dependence on the topology of the network and the influence of distance estimation error on the positioning accuracy.

Key words: Wireless Sensor Networks(WSN), localization, DV-Hop algorithm, multi-mobile beacon, Range-free, error

摘要: 针对传统DV-Hop 定位算法严重依赖拓扑结构的问题,提出一种基于多移动信标和DV-Hop 的定位算法MMB-DV-Hop。利用多个移动信标遍历整个DV-Hop 定位网络,并且这些信标保持一定的相对位置关系,使用RSSI 技术测距并为未知节点提供距离信息以辅助定位,从而有效结合基于测距和基于非测距2 种算法的优势。仿真结果表明,与传统算法相比,该算法能减少约10% ~15% 的归一化平均定位误差,不仅降低对网络拓扑结构的依 赖,而且减少了距离估计误差对定位精度的影响,从而提高平均定位精度。

关键词: 无线传感器网络, 定位, DV-Hop 算法, 多移动信标, 非测距, 误差

CLC Number: