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基于RSSI的无线传感器网络定位算法研究 被引量:2

Study of localization algorithm based on RSSI for WSNs
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摘要 Ecolocation是一种基于RSSI的定位技术,算法中基于约束表的构造存在不完善之处.针对定位算法存在的误差问题从2个方面进行如下改进:首先规范构造约束表的数据源,统一采用RSSI值;其次统一序列排序比较对象,以未知节点的源数据为共同的比较基准.给出了改进算法的实现流程,并对算法的性能进行了仿真研究.仿真结果表明,改进算法的时间略有增加,而定位精度得到明显提高,随着锚节点数的增加,定位误差明显减小. Ecolocation是一种基于RSSI的定位技术,算法中基于约束表的构造存在不完善之处.针对定位算法存在的误差问题从2个方面进行如下改进:首先规范构造约束表的数据源,统一采用RSSI值;其次统一序列排序比较对象,以未知节点的源数据为共同的比较基准.给出了改进算法的实现流程,并对算法的性能进行了仿真研究.仿真结果表明,改进算法的时间略有增加,而定位精度得到明显提高,随着锚节点数的增加,定位误差明显减小.
出处 《云南大学学报(自然科学版)》 CAS CSCD 北大核心 2011年第S2期202-205,233,共5页 Journal of Yunnan University(Natural Sciences Edition)
基金 国家自然科学基金资助项目(61063010)
关键词 RSSI WSNS 定位序列 约束方法 RSSI WSNs localization sequences constraint-based approach
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参考文献14

  • 1Drago? Niculescu,Badri Nath.DV Based Positioning in Ad Hoc Networks[J]. Telecommunication Systems . 2003 (1-4)
  • 2MAROTI M,VOLGYESI P,DORA S,et al."Radio in-terferometric geolocation,". proc Third Int’’l Conf.Embedded Ntworked Sensor Systems(SenSys’’05) . 2005
  • 3YEDAVALLI K,KRISHNAMACHARI B.Sequence_based localization in wireless sensor networks. IEEE Transactions on Mobile Computing . 2008
  • 4LIU Zhi-hua,CHEN Jia-xing.A new sequence-basediterative localization in wireless sensor networks. ICIECS 2009.International Conference on InformationEngineering and Computer Science . 2009
  • 5XU Xiao,DENG Zhi-dong.A novel sequence based lo-calization approach for wireless sensor networks. 2009 5th International Conference on Wireless Commu-nications,Networking and Mobile Computing . 2009
  • 6Kiran Yedavalli,,Bhaskar Krishnamachari,Sharmila Ravula,and Bhaskar Srinivasan.Ecolocation:a sequence based technique for rf localization in wireless sensor networks. IPSN ‘05:Proceedings of the 4th international symposium on Information processing in sensor networks . 2005
  • 7Girod L,Estrin D.Robust range estimation using acoustic and multimodal sensing. Proceedings of the IEEE/RSJ International Conference on Intelligent Robots and Systems(IROS’ 01) . 2001
  • 8Harter A,Hopper A,Steggles P,et al.The anatomy of a context-aware application. Proceeding of the 5th Annual ACM/IEEE International Conference on Mobile Computing and Networking . 1999
  • 9Dragos Niculescu,Badri Nath.Ad hoc positioning system (APS) using AoA. Proceedings of The 22nd Annual Joint Conference of the IEEE Computer and Communications Societies ( INFOCOM 2003 ) . 2003
  • 10Bahl P,Padmanabhan V N.RADAR: An in-building RF-based user location and tracking system. Proc of the 19th Annual Joint Conference of the IEEE Computer and Communications Societies . 2000

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