| 无线传感器网络基于移动信标动态选择的定位算法 |
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| 引用本文： | 谢晓松,程良伦. 无线传感器网络基于移动信标动态选择的定位算法[J]. 传感器与微系统, 2011, 30(1): 123-126,130 |
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| 作者姓名： | 谢晓松 程良伦 |
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| 作者单位： | 广东工业大学,自动化学院,广东,广州,510006 |
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| 基金项目： | 国家自然科学基金资助项目，广东省自然科学基金资助项目，广东省重大科技专项基金资助项目 |
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| 摘 要： | 无线传感器网络节点定位是许多应用的基础.DV-Hop 是一种无需测距的定位算法,但其定位精度依赖于网络的联通状况,对于不规则拓扑的网络定位误差较大.针对这种情况,提出一种新的基于移动信标动态选择的改进 DV-Hop 定位算法,利用一个移动信标在网络中漫游并广播定位分组信息,并在每个虚拟信标中计算当前位置的平均跳距离.未...
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| 关 键 词： | 无线传感器网络 移动信标节点 DV-Hop 虚拟信标 动态选择算法 |
Localization algorithm for wireless sensor networks based on mobile beacon dynamic selection |
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| XIE Xiao-song,CHENG Liang-lun. Localization algorithm for wireless sensor networks based on mobile beacon dynamic selection[J]. Transducer and Microsystem Technology, 2011, 30(1): 123-126,130 |
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| Authors: | XIE Xiao-song CHENG Liang-lun |
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| Abstract: | Node localization is the basis of many applications of wireless sensor networks.DV-Hop is a kind of range-free localization algorithm,but the positioning precision depends on the network's connecting situation.For irregular topology network,the localization error is large.In view of this situation,an improved DV-Hop algorithm based on mobile beacon dynamic selection is proposed.A mobile beacon is used to move around the network according to predestinate path and broadcast messages with its localization information,and calculate the average of one-hop distance.Unknown node dynamic selects the three beacons which can acquire the highest precision and use trilateration algorithm to calculate its position.Simulation results prove that the algorithm can improve the localization precision. |
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| Keywords: | DV-Hop |
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