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http://dx.doi.org/10.7840/kics.2013.38C.1.97

Location Information Reliability-Based Precision Locating System Using NLOS Condition Estimation  

Son, Sanghyun (부산대학교 컴퓨터공학과 임베디드시스템 연구실)
Choi, Hoon (부산대학교 컴퓨터공학과 임베디드시스템 연구실)
Cho, Hyuntae (KAIST 스마트IT융합시스템연구단)
Baek, Yunju (부산대학교 컴퓨터공학과 임베디드시스템 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.38C, no.1, 2013 , pp. 97-108 More about this Journal
Abstract
Recently, mobile devices were increased and there was a sharp rise in demand. To exploit the location information of each device, many researcher was studying locating systems. The favorite locating or positioning systems were a GPS using satellites and a RTLS using wireless communication between devices. If some obstacle existed nearby the target device, The system have difference of performance. The obstacles near targets were caused signal disconnection and reflection because of NLOS condition. As the result, the NLOS condition degrade the locating performance. In this paper, we propose a locating system which is cooperated two systems using information reliability estimates from LOS/NLOS condition. We developed proposed system. In addition, we performed fields test and simulation tests at various environment for performance evaluation. As the result, the test showed 97% success rate to estimate NLOS condition. Furthermore, the simulation result of our locating system was increased to 89% compared with a single system.
Keywords
GPS satellite; RTLS; NLOS condition; Measuring Reliability; Locating system;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 H. Choi, S. Son, and Y. Baek, "Multi-step location system using mobile reader and trajectory information in container port environments," J. KICS, vol. 36, no. 12, pp. 966-974, Dec. 2011.
2 H. Choi, Y. Jung, and Y. Baek, "Two-step locating system for harsh marine port environments," in proc. 2011 IEEE Int. Conf. RFID., pp. 106-112, April 2011.
3 Publications and Standards from the National Marine Electronics Association (NMEA). National Marine Electronics Association, Retrieved June, 27, 2008, from http://www.nmea.org/pub/index.html.
4 R. B. Langley (May 1999). "Dilution of Precision". GPS World. Retrieved Oct., 12, 2011, from http://gauss.gge.unb.ca/papers.pdf/gpsworld.may99.pdf.
5 S. Son, J. Kim, H. Choi, Y. Jung, and Y. Baek, "Design and implementation of a real time locating systems over IEEE 802.15.4a radio for port logistics," in proc. Int. Conf. Inform. Techn.: New Generations (ITNG), pp. 1183-1188 , Apr. 2010.
6 Nanotron, nanoLOC TRX Transceiver (NA5TR1) User Guide Ver.1.02 (NA-06-0239-0385-1.02), Retrieved from http://www.nanotron.com.
7 IEEE 802.15 WPAN Low Rate Alternative PHY Task Group 4a (TG4a), Retrieved Mar., 2008, from http://ieee802.org/15/pub/TG4a.html.
8 H. Cho, H. Choi, W. Lee, Y. Jung, and Y. Baek, "Design and implementation of a smart tag system for IT-based port logistics," Lect. Notes Comput. Sc., vol. 4159/2006, vol. 4159, pp. 32-43, Sep, 2006.
9 Y. Chan, Y. C. Hang, and P. Ching, "Exact and approximate maximum likelihood localization algorithms," IEEE Trans. on Veh. Technol., vol. 55, iss. 1, pp. 10-16, Jan, 2006.   DOI   ScienceOn
10 N. B. Priyantha, A. Chakraborty, and H. Balakrishnan "The cricket location-support system," in proc. ACM Int. Conf. Mobile Computing and Networking (MobiCom), pp. 32-43, Aug, 2000.
11 Y. T. Chan and K. C. Ho, "A simple and efficient estimator for hyperbolic location," IEEE Trans. Signal Proces., pp. 1905-1915, Vol. 42, no. 8. Aug. 1994.   DOI   ScienceOn
12 J. Borras, P. Hatrack, and N. Mandayam "Decision theoretic framework for NLOS identification," in proc. IEEE VTC 98., pp. 1583-1587. May, 1998
13 RA. Saeed, S. Khatun, BM. Ali, and MA. Khazani "Ultrawideband(UWB) geolocation in NLOS multipath fading environments," in proc. IEEE Int. Conf. Commu., pp. 1068-1073, Nov, 2005.
14 S. Venkatesh and R. M. Buehrer "NLOS mitigation using linear programming in ultrawideband location-aware networks," IEEE Trans Veh Technol, vol. 56, no. 5, pp. 3182-3198, Sep, 2007.   DOI   ScienceOn
15 Y-H. Jo, J-Y. Lee, D-H. Ha, and S-H. Kang "Accuracy enhancement for UWB indoor positioning using ray tracing." in proc. IEEE/ION Position, Location, And Navigation Symp., pp. 565-568, Apr, 2006
16 M. Heidari, FO. Akgul, and K. Pahlavan " Identification of the absence of direct path in indoor localization systems," in proc. IEEE Int. Symp. Personal, Indoor, and Mobile Radio Communications, pp. 1-6, Sep, 2007.
17 K. Yu and YJ. Guo "NLOS error mitigation for mobile location estimation in wireless networks," in proc. IEEE VTC 2007-Spring., pp. 1071-1075, Apr, 2007.
18 J. Schroeder, S. Galler, K. Kyamakya, and T. Kaiser "Threedimensional indoor localization in non line of sight UWB channels." in proc. IEEE Int. Conf. on Ultra-Wideband (ICUWB), pp. 89-93, Sep, 2007
19 H. Choi, S. Son, and Y. Baek, "Multi-step location system using mobile reader and trajectory information in container port environments," J. KICS, vol. 36, no. 12, pp. 966-974, Dec. 2011.   DOI