期刊文献+

基于跳数的无线传感器网络定位求精算法 被引量:9

Hop-based Refinement Algorithm for Localization in Wireless Sensor Networks
下载PDF
导出
摘要 节点本身的定位误差和节点间距离测量(或计算)误差的积累限制了无线传感器网络节点定位循环求精的功效。为有效提高定位精度,在继承加权最小二乘法优点的基础上,提出基于跳数的求精和与其相对应的节点相对置信度方法。增加节点定位计算的冗余度,可有效减小误差积累。将该方法应用于Robust Positioning定位算法中,构成一种新的RP-Hop定位算法。仿真实验结果表明,节点的定位精度可提高约10%。 Accumulation of node localization error and distance measurement(or calculation) error between nodes restrict the benefit of iterative refinement of node localization in Wireless Sensor Networks(WSN). 1,1 order to improve the precision of node localization effectively, this paper proposes a hop-refinement and relative confidence based on Weight Least Square(WLS) algorithm. Hop-refinement increases redundancy for node location. Relative confidence declines accumulation of error. Application of hop-refinement in robust positioning algorithm brings forward RP-Hop algorithm. Simulation results show that localization precision increases by 10% compared with Robust Positioning algorithm.
出处 《计算机工程》 CAS CSCD 北大核心 2009年第3期145-147,151,共4页 Computer Engineering
基金 国家“863”计划基金资助项目(2006AA01Z222) 国家自然科学基金资助项目(60873240)
关键词 无线传感器网络 节点定位 循环求精 加权最小二乘法 Wireless Sensor Network(WSN) node localization iterative refinement Weight Least Squares(WLS)
  • 相关文献

参考文献6

  • 1Savarese C, Rabay J, Langendoen K. Robust Positioning Algorithms for Distributed Ad Hoc Wireless Sensor Networks[C]//Proc. of the USENIX Technical Annual Conference. Monterey, USA: [s. n.],2002.
  • 2Li Xinrong. Collaborative Localization with Received Signal Strength in Wireless Sensor Networks[J]. IEEE Transactions on Vehicular Technology, 2007, 56(6): 3807-3817.
  • 3Liu Juan, Zhang Ying, Zhao Feng. Robust Distributed Node Localization with Error Management[C]//Proc. of the 7th ACM International Symposium on Mobile Ad Hoc Networking and Computing. Florence, Italy: [s. n.], 2006.
  • 4Jeongkeun L, Kideok C, Seungjae L, et al. Distributed and Energy-efficient Target Localization and Tracking in Wireless Sensor Networks[J]. Computer Communication, 2006, 29(13/14): 2494-2505.
  • 5Meguerdichian S, Slijepcevic S, Karayan V, et al. Localized Algorithms in Wireless Ad Hoc Networks: Location Discovery and Sensor Exposure[C]//Proc. of the 2nd ACM Int'l Symp. on Mobile Ad Hoc Networking & Computing. IS. 1.]: ACM Press, 2001.
  • 6马祖长,孙怡宁.无线传感器网络节点的定位算法[J].计算机工程,2004,30(7):13-14. 被引量:67

二级参考文献1

  • 1KaplanED.GPS原理与应用[M].北京:电子工业出版社,2002..

共引文献66

同被引文献77

引证文献9

二级引证文献52

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部