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无线传感器网络中DV-Hop定位算法的改进 被引量：1

Improvement of DV-Hop Localization Algorithm for Wireless Sensor Networks
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摘要 针对无线传感器网络DV-Hop定位算法中节点个数较少时跳段距离估算误差大,及只有2个锚节点时无法定位等问题,提出了一种改进的DV-Hop定位算法.新算法综合了功率控制和计算全网平均每跳距离等措施,提高了跳段距离估算精度,降低了定位误差;同时针对只有2个锚节点时无法定位问题,采用了2个锚节点的定位模型.仿真实验结果表明,改进算法可以明显提高定位精度和定位覆盖率. This paper propose an improved DV-Hop localization algorithm for wireless sensor networks,aiming at the two problems of the traditional DV-Hop localization algorithm,that is,big estimation errors of jump distance in case of small number of nodes,and location failure of unknown nodes with only two anchor nodes.The new algorithm adopts power control and calculates average per hop distance of the whole network while using a two-anchor-node location model.Simulation results show that the improved algorithm can significantly improve the localization accuracy and coverage.
作者 李逶 刘同佩 周晖 王坤赤
机构地区 上海大学通信与信息工程学院 南通大学电子信息学院
出处 《南通大学学报（自然科学版）》 CAS 2010年第2期29-34,共6页 Journal of Nantong University(Natural Science Edition)　
基金 江苏省高校自然科学基金重点项目(07KJA51007) 南通市科技项目(K2007008 K2009001) 南通大学科技项目(09ZW001)
关键词 无线传感器网络 DV-HOP定位算法 锚节点 wireless sensor networks DV-Hop localization algorithm anchor node
分类号 TP212 [自动化与计算机技术—检测技术与自动化装置]
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参考文献8

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共引文献1737

同被引文献10

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南通大学学报（自然科学版）
2010年 第2期

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