IEMEK Journal of Embedded Systems and Applications (대한임베디드공학회논문지)

Institute of Embedded Engineering of Korea (대한임베디드공학회)
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A Study of Selective Indoor Positioning between Enhanced Time Difference of Arrival and Pattern Matching using Received Signal Strength Indicator

RSSI를 이용한 향상된 TDOA와 Pattern Matching 간의 선택적 실내 측위에 관한 연구

  • Received : 2012.08.01
  • Accepted : 2012.11.29
  • Published : 2013.02.28
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Abstract

This paper researches location estimating method in CDMA system. Previously proposed positioning algorithms are difficult to estimate accurate position in indoor environments, and possible to limited position. This paper proposes enhanced algorithm using received PN pilot signals from base stations to enhance previous algorithms. For estimating position, we set the threshold value and use over the threshold value in received signals. After selecting signals, we estimate position using TDOA algorithm. And the cases which TDOA algorithm cannot use to estimate position, we use Pattern Matching algorithm. The proposed method system showed the improved performance in estimating parameters and locating positions by computer simulations.

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References

  1. T.S. Rappaport, J.H. Reed, B.D. Woerner, "Position Location Using Wireless Communications on Highways of the Future," IEEE Communications Magazine, Vol. 34, No. 10, pp.33-41, 1996. https://doi.org/10.1109/35.544321
  2. Y. Ju, Y. Park, "Location Accuracy Analysis and Accuracy Improvement Method of Pattern Matching Algorithm Using Database Construction Algorithm," Journal of IEEK, Vol. 46, No. 4, pp.86-94, 2009 (in Korean).
  3. J.W. Song, S.J. Hur, Y.W. Park, K.Y. Yoo, "Database investigation Algorithm for High-Accuracy based Indoor Positioning", Journal of IEMEK, Vol. 7, No. 2, pp.85-93, 2012 (in Korean).
  4. N. Chahe, D. Charles, "Geolocation in Mines With an Impulse Response Fingerprinting Technique and Neural Networks," IEEE Trans. Wireless Comm., Vol. 5, No. 3, pp.603-611, 2006. https://doi.org/10.1109/TWC.2006.1611090
  5. A.H. Sayed, A. Tarighhat, "Network-based wireless location: challenges faced in developing technique for accurate wireless location information," IEEE Signal Processing Magazine, Vol. 22, No. 4, pp.24-40, 2005. https://doi.org/10.1109/MSP.2005.1458275
  6. J.J. Caffery, G.L. Stuber, "Subscriber location in CDMA cellular networks," IEEE Trans. Vehicular Tech., Vol. 47, No. 2, pp.406-416, 1998. https://doi.org/10.1109/25.669079
  7. A. Dilshod, H. Choi, Y. Park, "Hybrid Pattern Matching/TDOA Positioning Method for CDMA Network," Proceedings on the International Conference of WPNC, pp.199-203, 2007.
  8. J. Laiho, A. Wacker, T. Novosad, Radio Network Planning and Optimizations for UMTS, Willey, 2002.
  9. K.C. Park, S.S. Kim, "A Study on the Location Estimation Method by Using the TDOA Method in Urban Micro-cell," J-KICS, Vol. 12, No. 23, pp.3197-3206, 1998 (in Korean).
  10. Y. Okumura, E. Ohmori, T. Kawano, K. Fukuda, "Field strength and its variability in VHF and UHF land-mobile radio service," Rev. Electr. Commun. Lab., Vol. 16, No. 9, pp.825-873, 1968.
  11. T.S. Rappaport, Wireless Communications. Principles and Practice, 2nd edition, Prentice Hall, 2002.
  12. K. Pahlavan, F.O. Akgul, A. Hatami, "Indoor geolocation in the absence of direct path," IEEE Wireless Communications, Vol. 13, No. 6, pp. 50-58, December 2006.