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EURASIP Journal on Advances in Signal Processing
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A Highly Efficient Generalized Teager-Kaiser-Based Technique for LOS Estimation in WCDMA Mobile Positioning

EURASIP Journal on Advances in Signal Processing volume 2005, Article number: 685032 (2005) Cite this article

Abstract

Line-of-sight signal delay estimation is a crucial element for any mobile positioning system. Estimating correctly the delay of the first arriving path is a challenging topic in severe propagation environments, such as closely spaced multipaths in multiuser scenario. Previous studies showed that there are many linear and nonlinear techniques able to solve closely spaced multipaths when the system is not bandlimited. However, using root raised cosine (RRC) pulse shaping introduces additional errors in the delay estimation process compared to the case with rectangular pulse shaping due to the inherent bandwidth limitation. In this paper, we introduce a novel technique for asynchronous WCDMA multipath delay estimation based on deconvolution with a suitable pulse shape, followed by Teager-Kaiser operator. The deconvolution stage is employed to reduce the effect of the bandlimiting pulse shape.

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Authors and Affiliations

  1. Etisalat University College, Emirates Telecommunications Corporation, P.O. Box 980, Sharjah, United Arab Emirates

    Ridha Hamila

  2. Institute of Communications Engineering, Tampere University of Technology, P.O. Box 553, Tampere, 33101, Finland

    Abdelmonaem Lakhzouri, Elena Simona Lohan & Markku Renfors

Authors
  1. Ridha Hamila
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  2. Abdelmonaem Lakhzouri
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  3. Elena Simona Lohan
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  4. Markku Renfors
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Corresponding author

Correspondence to Ridha Hamila.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License ( https://creativecommons.org/licenses/by/2.0 ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Hamila, R., Lakhzouri, A., Lohan, E.S. et al. A Highly Efficient Generalized Teager-Kaiser-Based Technique for LOS Estimation in WCDMA Mobile Positioning. EURASIP J. Adv. Signal Process. 2005, 685032 (2005). https://doi.org/10.1155/ASP.2005.698

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  • DOI: https://doi.org/10.1155/ASP.2005.698

Keywords and phrases

  • multipath delay estimation
  • WCDMA mobile positioning
  • DSP for wireless communications