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The Non-Line of Sight (NLOS) problem is the major drawback for accurate localization within Ultra-Wideband (UWB) sensor networks. In this article, a comprehensive overview of the existing methods for localization in distributed UWB sensor networks under NLOS conditions is given and a new method is proposed. This method handles the NLOS problem by an NLOS node identification and mitigation approach through hypothesis test. It determines the NLOS nodes by comparing the mean square error of the range estimates with the variance of the estimated LOS ranges and handles the situation where less than three Line of Sight (LOS) nodes are available by using the statistics of an arrangement of circular traces. The performance of the proposed method has been compared with some other methods by means of computer simulation in a 2D area.
Gezici S, Tian Z, Giannakis GB, et al.: Localization via ultra-wideband radios: a look at positioning aspects of future sensor networks. IEEE Signal Processing Magazine 2005, 22(4):70-84. CrossRef
Thomä RS, Hirsch O, Sachs J, Zetik R: UWB sensor networks for position location and imaging of objects and environments. Proceedings of the 2nd European Conference on Antennas and Propagation (EuCAP '07 ), November 2007, Edinburgh, UK 11-16.
Gezici S, Poor HV: Position estimation via ultra-wide-band signals. Proceedings of the IEEE 2009, 97(2):386-403. CrossRef
Sahinoglu Z, Gezici S, Guvenc I: Ultra-Wideband Positioning Systems: Theoretical Limits, Ranging Algorithms, and Protocols. Cambridge University Press, New York, NY, USA; 2008. CrossRef
Gezici S: A survey on wireless position estimation. Wireless Personal Communications 2008, 44(3):263-282. 10.1007/s11277-007-9375-z CrossRef
Lee J-Y, Scholtz RA: Ranging in a dense multipath environment using an UWB radio link. IEEE Journal on Selected Areas in Communications 2002, 20(9):1677-1683. 10.1109/JSAC.2002.805060 CrossRef
Chehri A, Fortier P, Tardif P-M: On the TOA estimation for UWB ranging in complex confined area. Proceedings of the International Symposium on Signals, Systems and Electronics (ISSSE '07), July-August 2007, Montréal, Canada 533-536.
Guvenc I, Sahinoglu Z: Threshold-based TOA estimation for impulse radio UWB systems. Proceedings of IEEE International Conference on Ultra-Wideband (ICU '05), September 2005 420-425.
Foy WH: Position-location solutions by Taylor-series estimation. IEEE Transactions on Aerospace and Electronic Systems 1976, 12(2):187-194. CrossRef
Chan Y-T, Hang HYC, Ching P-C: Exact and approximate maximum likelihood localization algorithms. IEEE Transactions on Vehicular Technology 2006, 55(1):10-16. 10.1109/TVT.2005.861162 CrossRef
Shen G, Zetik R, Thomä RS: Performance comparison of TOA and TDOA based location estimation algorithms in LOS environment. Proceedings of the 5th Workshop on Positioning, Navigation and Communication (WPNC '08), March 2008, Hannover, Germany 71-78.
Shen G, Zetik R, Thomä RS: Performance evaluation of range-based location estimation algorithms under LOS situation. Proceedings of the German Microwave Conference (GeMiC '08), March 2008, Hamburg, Germany
Guvenc I, Chong C-C, Watanabe F: Joint TOA estimation and localization technique for UWB sensor network applications. Proceedings of the 65th IEEE Vehicular Technology Conference (VTC '07), April 2007, Dublin, Ireland 1574-1578.
Schroeder J, Galler S, Kyamakya K, Jobmann K: NLOS detection algorithms for ultra-wideband localization. Proceedings of the 4th Workshop on Positioning, Navigation and Communication (WPNC '07), March 2007, Hannover, Germany 159-166.
Chen PC: A non-line-of-sight error mitigation algorithm in location estimation. Proceedings of IEEE Wireless Communications and Networking Conference (WCNC '99), September 1999, New Orleans, La, USA 1: 316-320.
Medina E, Nájar M: High resolution location in ultra wideband communications systems. Proceedings of the 2nd International Workshop Networking with Ultra Wide Band Workshop on Ultra Wide Band for Sensor Networks, July 2005, Rome, Italy 40-44. CrossRef
Jourdan DB, Deyst JJ Jr., Win MZ, Roy N: Monte Carlo localization in dense multipath environments using UWB ranging. Proceedings of IEEE International Conference on Ultra-Wideband (ICU '05), September 2005, Zurich, Switzerland 314-319.
Güvenç I, Chong C, Watanabe F, Inamura H: NLOS identification and weighted least squares localization for UWB systems using multipath channel statistics. EURASIP Journal on Advances in Signal Processing 2008, 2008:-14.
Wylie MP, Holtzman J: The non-line of sight problem in mobile location estimation. Proceedings of the 5th IEEE Conference on Universal Personal Communications (ICUPC '96), September-October 1996, Cambridge, Mass, USA 2: 827-831. CrossRef
Borras J, Hatrack P, Mandayam NB: Decision theoretic framework for NLOS identification. Proceedings of the 48th IEEE Vehicular Technology Conference (VTC '98), May 1998, Ottawa, Canada 2: 1583-1587.
Chan Y-T, Tsui W-Y, So H-C, Ching P-C: Time-of-arrival based localization under NLOS conditions. IEEE Transactions on Vehicular Technology 2006, 55(1):17-24. 10.1109/TVT.2005.861207 CrossRef
Chang R, Lu S-W: A geometrical position location method suitable for NLOS environment. Journal of Electronics & Information Technology 2007, 29(9):2212-2216.
Venkatesh S, Buehrer RM: A linear programming approach to NLOS error mitigation in sensor networks. Proceedings of the 5th International Conference on Information Processing in Sensor Networks (IPSN '06), April 2006, Nashville, Tenn, USA 301-308.
- Range-Based Localization for UWB Sensor Networks in Realistic Environments
Reiner S. Thomä
- Springer International Publishing
EURASIP Journal on Wireless Communications and Networking
Elektronische ISSN: 1687-1499
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