| 无线传感器网络中改进的DV-Hop定位算法 |
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| 引用本文： | 李凤超,高美凤. 无线传感器网络中改进的DV-Hop定位算法[J]. 传感器与微系统, 2018, 0(2): 124-126. DOI: 10.13873/J.1000—9787(2018)02—0124—03 |
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| 作者姓名： | 李凤超 高美凤 |
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| 作者单位： | 江南大学轻工过程先进控制教育部重点实验室,江苏无锡,214122 |
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| 基金项目： | 国家自然科学基金资助项目，江苏省自然科学基金资助项目 |
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| 摘 要： | 针对传统距离矢量跳(DV-Hop)算法中平均跳距的误差以及未知节点与锚节点之间估计距离的误差,提出了一种改进算法.通过筛选参与锚节点平均跳距计算的锚节点减小引入误差,并对其进行加权处理以提高精度;根据未知节点与锚节点之间的跳数计算未知节点平均跳距;依据平均跳距作用域,计算锚节点到未知节点的距离.仿真结果表明:在不增加硬件开销的条件下,改进算法有效减小了定位误差.
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| 关 键 词： | 节点定位算法 平均跳距作用域 锚节点平均跳距 未知节点平均跳距 无线传感器网络 node localization algorithm hop-size action scope beacon nodes hop-size unknown nodes hop-size wireless sensor networks(WSNs) |
Improved DV-Hop localization algorithm in wireless sensor networks |
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| LI Feng-chao,GAO Mei-feng. Improved DV-Hop localization algorithm in wireless sensor networks[J]. Transducer and Microsystem Technology, 2018, 0(2): 124-126. DOI: 10.13873/J.1000—9787(2018)02—0124—03 |
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| Authors: | LI Feng-chao GAO Mei-feng |
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| Abstract: | Aiming at error caused by the average hop distance and the estimated distance between the unknown node and the anchor node in distance vector-hop(DV-Hop)algorithm,an improved algorithm is proposed. Beacon nodes,which are selected to take part in the beacon average hop distance computing,are weighted to inecrease precision. Average hop distance of unknown node is selected according to the hops between the anchor node and unknown node. Distance between beacon node and unknown node is calculated according to the hop-size action scope. The simulation results show that the improved algorithm effectively reduces the DV-Hop localization errors without additional hardware overhead. |
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