| 无线传感器网络中DV-Hop定位算法的改进 |
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| 引用本文： | 刘文远,王恩爽,陈子军.无线传感器网络中DV-Hop定位算法的改进[J].小型微型计算机系统,2011,32(6). |
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| 作者姓名： | 刘文远 王恩爽 陈子军 |
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| 作者单位： | 燕山大学信息科学与工程学院,河北秦皇岛,066004 |
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| 基金项目： | 国家自然科学基金项目(60970123)资助 |
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| 摘 要： | 针对无线传感器网络非基于测距的DV-Hop定位算法中,信标节点与未知节点之间平均跳距估计的不足以及三边定位过程中信标节点的选择对定位误差的影响,提出一种改进的DV-Hop定位算法.在改进策略中,对平均跳距采用加权处理进行修正,并有选择性的选取信标节点参与最后的三边定位.仿真结果表明,改进后的DV-Hop算法能够更准确地对平均跳距进行估计,并且有效地降低了未知节点的定位误差.
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| 关 键 词： | 平均跳距 信标节点选择 三边测量 DV-Hop定位算法 无线传感器网络 |
Improved DV-Hop Localization Algorithm in Wireless Sensor Networks |
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| LIU Wen-yuan,WANG En-shuang,CHEN Zi-jun.Improved DV-Hop Localization Algorithm in Wireless Sensor Networks[J].Mini-micro Systems,2011,32(6). |
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| Authors: | LIU Wen-yuan WANG En-shuang CHEN Zi-jun |
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| Affiliation: | LIU Wen-yuan,WANG En-shuang,CHEN Zi-jun(YanShan University College of Information Science and Engineering,Qinhuangdao 066004,China) |
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| Abstract: | In the DV-Hop localization algorithm based on range-free for wireless sensor networks,to overcome the disvantage of the estimation on the average hop distance between beacon nodes and unknown nodes,and the effection of localization error by the selection of anchor nodes in triangulation,an improved DV-Hop localization algorithm is proposed.In the improved strategy,it refines the average hop distance based on weighted disposal,and selects beacon nodes to participate in triangulation selectively.Simulation re... |
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| Keywords: | the average hop distance the selection of beacon nodes triangulation DV-Hop localization algorithm wireless sensor networks |
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