Skip to main navigation menu Skip to main content Skip to site footer

SECTION C: ENGINEERING

Vol. 7 No. 2 (2015)

NLOS Mitigation for Mobile Subscriber Positioning Systems By Weighting measures and Geometrical Restrictions

DOI
https://doi.org/10.18272/aci.v7i2.267
Submitted
January 22, 2016
Published
2015-12-30

Abstract

This paper studies the Non-Line-Of-Sight condition mitigation issue in mobile subscriber positioning systems by weighting Time-Of-Arrival measures and applying geometrical restrictions. Particularly, this work departs from a more exact characterization of the signal statistics to achieve weighting factors able to reach a more effective mitigation, and consequently a more accurate mobile subscriber positioning. In addition, restrictions based on the cell geometry are incorporated as a complementary refinement method. Therefore, three new methods with better properties than those taken from the literature and used as reference are introduced. These approaches are evaluated within a realistic simulation scenario.

viewed = 1027 times

References

  1. Karimi, H. A. 2013. "Advanced Location-Based Technologies and Services". CRC Press: 3-54. ISBN: 9781466518186.
  2. Qiu, p.; Zhang, J.; Zeng, J. 2012. "Study on the Mobile LBS Development Model". International Conference on Computer Science and Service Systems: 1070-1074. doi: http://dx.doi.org/10.1109/CSSS.2012.271.
  3. Chung-Ming, H.; Shang-Chun, L. 2011. "DEH: A ubiquitous Heritage Exploring System using the LBS Mechanism". International Conference on Network-Based Information Systems: 310-317. doi: http://dx.doi.org/10.1109/NBiS.2011.54.
  4. Guoshi, W.; Fang, Z.; Rui, W. 2012. "Design and Implementation of an LBS Application Server Software Based on the PUB/SUB Paradigm". International Conference on Business Computing and Global Informatization: 637-640. doi: http://dx.doi.org/10.1109/BCGIN.2012.171.
  5. Barnes, R.; Rosen, B. 2014. "911 for the 21st century". IEEE Spectrum, 51 (4). doi: http://dx.doi.org/10.1109/MSPEC.2014.6776307.
  6. 3rd Generation Partnership Project. 2004. "Technical Specification Group Radio Access Network; Stage 2 functional specification on User Equipment (UE) positioning in UTRAN (Release 6) - 3GPP TS 25.305 V6.1.0 (2004-06)". http://www.qtc.jp/3GPP/Specs/25305-610.pdf.
  7. 3rd Generation Partnership Project. 2004. "Technical Specification Group Services and System Aspects; Functional stage 2 description of Location Services (LCS) (Release 4) - 3GPP TS 23.271 V4.13.0 (2004-12)". http://www.qtc.jp/3GPP/Specs/23271-4d0.pdf.
  8. Ertel, R. B.; Cardieri, P.; Sowerby, K. W.; Rappaport, T. S.; Reed, J. H. 1998. "Overview of Spatial Channel Models for Antenna Array Communication Systems". IEEE Personal Communications Magazine, 5 (1): 10-22.
  9. Greenstein, L. J.; Erceg, V; Yeh, Y. S.; Clark, M. V 1998. "A New Path-Gain/Delay-Spread Propagation Model for Digital Cellular Channels". IEEE Transactions on Vehicular Technology, 46 (2): 477-485.
  10. Lusina, P.; Kohandani, F.; Ali, S. M. 2008. "Antenna parameter effects on spatial channel models". The Institution of Engineering and Technology Communication, 3 (9). doi: http://dx.doi.org/10.1049/iet-com.2008.0414.
  11. Gentile, C.; Martínez, S.; Kik, A. 2010. "A Comprehensive Spatial-Temporal Channel Propagation Model for the Ultrawideband Spectrum 2-8 GHz". IEEE Transactions on Antennas and Propagation, 58 (6). doi: http://dx.doi.org/10.1109/TAP.2010.2046834.
  12. Asplund, H.; Alayón, A.; Molisch, A. F.; Pedersen, K. I.; Steinbauer, M. 2006. "The COST 259 Directional Channel Model - Part II: Macrocells". IEEE Transactions on Wireless Communications, 5 (12). doi: http://dx.doi.org/10.1109/TWC.2006.256967.
  13. Prócel, P.; Prócel, L.; Játiva, R.; Arauz, J. 2009. "Desarrollo de una Aplicación de Servicios Basados en Localización para Redes de tipo Global System for Mobile (GSM) y Universal Mobile Telecommunications System (UMTS) usando el emulador Mobile Positioning System 6.0.1 provisto por la empresa ERICSSON", Revista Avances en Ciencias e Ingenierías, 1 (1): 17-21.
  14. Tam, S.; Lee, H. 2009. "MSF Whitepaper on Location Services in LTE Networks MSF-TR-SERVICES-005-FINAL". Multiservice Forum.
  15. Torrieri, D. J. 1984. "Statistical Theory of Passive Location Systems". IEEE Transactions on Aerospace and Electronic Systems, AES-20 (2): 183-198.
  16. Gustafsson, F.; Gunnarsson, F. 2005. "Mobile Positioning using Wireless Networks - Possibilities and fundamental limitations based on available wireless network measurements". IEEE Signal Processing Magazine, 22 (4). doi: http://dx.doi.org/10.1109/MSP.2005.1458284.
  17. Sayed, A. H.; Tarighat, A.; Khajehnouri, N. 2005. "Network-Based Wireless Location". IEEE Signal Processing Magazine, 22 (4). doi: http://dx.doi.org/10.1109/MSP.2005.1458275.
  18. Zekavat, S. A.; Buehrer, R. M. 2012. "Handbook of Position Location - Theory, Practice and Advances". IEEE Press - John Wiley and Sons: New Jersey.
  19. Vidal, J.; Nájar, M. et al. 2001. "Positioning Accuracy when Tracking UMTS mobiles in delay and angular dispersive channels". IEEE Conference on Vehicular Technology.
  20. Játiva, R.; Vidal, J. 2009. "Estimación del Tiempo de Llegada en un canal Rayleigh desde una perspectiva de la Cota Inferior de Cramer-Rao". Revista Avances en Ciencias e Ingenierías, 1 (1): 5-10.
  21. Silva, S.; Játiva, R. 2009. "Seguimiento de Dispositivos Móviles en un Sistema de Comunicaciones Móviles Celulares". Revista Avances en Ciencias e Ingenierías, 1 (1): 23-27.
  22. Chan, F. K. W.; So, H. C., Zheng, J.; Lui, K. W. K. 2008. "Best Linear Unbiased Estimator Approach for Time-Of-Arrival Based Localisation". The Institution of Engineering and Technology Signal Processing, 2 (2). doi: http://dx.doi.org/10.1049/iet-spr: 20070190.
  23. Cong, L.; Zhuang, W. 2005. "Nonline-of-Sight Error Mitigation in Mobile Location". IEEE Transactions on Wireless Communications, 4 (2). doi: http://dx.doi.org/10.1109/TWC.2004.843040.
  24. Kai-Ten, F.; Chao-Lin, C.; Chien-Hua, C. 2008. "GALE: An Enhanced Geometry-Assisted Location Estimation Algorithm for NLOS Environments". IEEE Transactions on Mobile Computing, 7 (2). doi: http://dx.doi.org/10.1109/TMC.2007.70721.
  25. Deng, Z.; Yu, Y.; Guan, W.; He, L. 2010. "NLOS Error Mitigation Based on Modified Kalman Filter for Mobile Location in Cellular Networks". IEEE International Conference on Wireless Communications and Signal Processing: 1-5. doi: http://dx.doi.org/10.1109/WCSP.2010.5633466.
  26. Guan, W.; Deng, Z.; Yu, Y.; Ge, Y. 2010. "A NLOS Mitigation Method for CDMA2000 Mobile Location", Second IEEE International Conference on Network Infrastructure and Digital Content: 668-672. doi: http://dx.doi.org/10.1109/ICNIDC.2010.5657865.
  27. Long, Y.; Huang, J.; Pan, Y.; Du, J. 2013. "Novel TOA Location Algorithms based on MLE and MMSEE for NLOS Environments". IEEE International Conference on Communications, Circuits and Systems, 2. doi: http://dx.doi.org/10.1109/ICCCAS.2013.6765283.
  28. Huerta, J. M.; Vidal, J.; Giremus, A.; Tourneret, J. Y. 2009. "Joint Particle Filter and UKF Position Tracking in Severe Non-Line-of-Sight Situations". IEEE Journal of Selected Topics in Signal Processing, 3 (5). doi: http://dx.doi.org/10.1109/JSTSP.2009.2027804.
  29. Cheng-Tse, C.; Po-Hsuan, T.; Kai-Ten, F. 2010. "Hybrid TOA/TDOA based unified Kalman tracking algorithm for wireless networks". IEEE International Symposium on Personal Indoor and Mobile Radio Communications: 1707-1712. doi: http://dx.doi.org/10.1109/PIMRC.2010.5671921.
  30. Játiva, R.; Vidal, J. 2012. "Cota Inferior de Crámer-Rao en la Estimación del Tiempo de Llegada en un Canal Rice". Revista Avances en Ciencias e Ingenierías, 4 (1): C14-C21. ISSN 1390-5384.