Pilot-Assisted Channel Estimation Using Adaptive Interpolation for Coherent Rake Reception of DS-CDMA Signals

Shinsuke TAKAOKA; Fumiyuki ADACHI

doi:10.1093/ietcom/e88-b.7.2962

Pilot-Assisted Channel Estimation Using Adaptive Interpolation for Coherent Rake Reception of DS-CDMA Signals

Shinsuke TAKAOKA, Fumiyuki ADACHI

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In this paper, a pilot-assisted channel estimation using adaptive interpolation (in which, different interpolation filter tap weights is used for different symbol position) is proposed. Each set of tap weights is updated using the normalized least mean square (NLMS) algorithm, the reference signal for which is obtained by decision feedback and reverse modulation of the received data symbol. In order to reduce the number of tap weight sets and to achieve fast convergence, the conjugate centrosymmetry property of the tap weight set is used. The average bit error rate (BER) performance in a frequency-selective Rayleigh fading channel is evaluated by computer simulation. Also evaluated is the robustness against the frequency offset between a transmitter and a receiver.

Publication: IEICE TRANSACTIONS on Communications Vol.E88-B No.7 pp.2962-2970

Publication Date: 2005/07/01

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DOI: 10.1093/ietcom/e88-b.7.2962

Type of Manuscript: PAPER

Category: Wireless Communication Technologies

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Shinsuke TAKAOKA, Fumiyuki ADACHI, "Pilot-Assisted Channel Estimation Using Adaptive Interpolation for Coherent Rake Reception of DS-CDMA Signals" in IEICE TRANSACTIONS on Communications, vol. E88-B, no. 7, pp. 2962-2970, July 2005, doi: 10.1093/ietcom/e88-b.7.2962.
Abstract: In this paper, a pilot-assisted channel estimation using adaptive interpolation (in which, different interpolation filter tap weights is used for different symbol position) is proposed. Each set of tap weights is updated using the normalized least mean square (NLMS) algorithm, the reference signal for which is obtained by decision feedback and reverse modulation of the received data symbol. In order to reduce the number of tap weight sets and to achieve fast convergence, the conjugate centrosymmetry property of the tap weight set is used. The average bit error rate (BER) performance in a frequency-selective Rayleigh fading channel is evaluated by computer simulation. Also evaluated is the robustness against the frequency offset between a transmitter and a receiver.
URL: https://globals.ieice.org/en_transactions/communications/10.1093/ietcom/e88-b.7.2962/_p

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@ARTICLE{e88-b_7_2962,
author={Shinsuke TAKAOKA, Fumiyuki ADACHI, },
journal={IEICE TRANSACTIONS on Communications},
title={Pilot-Assisted Channel Estimation Using Adaptive Interpolation for Coherent Rake Reception of DS-CDMA Signals},
year={2005},
volume={E88-B},
number={7},
pages={2962-2970},
abstract={In this paper, a pilot-assisted channel estimation using adaptive interpolation (in which, different interpolation filter tap weights is used for different symbol position) is proposed. Each set of tap weights is updated using the normalized least mean square (NLMS) algorithm, the reference signal for which is obtained by decision feedback and reverse modulation of the received data symbol. In order to reduce the number of tap weight sets and to achieve fast convergence, the conjugate centrosymmetry property of the tap weight set is used. The average bit error rate (BER) performance in a frequency-selective Rayleigh fading channel is evaluated by computer simulation. Also evaluated is the robustness against the frequency offset between a transmitter and a receiver.},
keywords={},
doi={10.1093/ietcom/e88-b.7.2962},
ISSN={},
month={July},}

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TY - JOUR
TI - Pilot-Assisted Channel Estimation Using Adaptive Interpolation for Coherent Rake Reception of DS-CDMA Signals
T2 - IEICE TRANSACTIONS on Communications
SP - 2962
EP - 2970
AU - Shinsuke TAKAOKA
AU - Fumiyuki ADACHI
PY - 2005
DO - 10.1093/ietcom/e88-b.7.2962
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E88-B
IS - 7
JA - IEICE TRANSACTIONS on Communications
Y1 - July 2005
AB - In this paper, a pilot-assisted channel estimation using adaptive interpolation (in which, different interpolation filter tap weights is used for different symbol position) is proposed. Each set of tap weights is updated using the normalized least mean square (NLMS) algorithm, the reference signal for which is obtained by decision feedback and reverse modulation of the received data symbol. In order to reduce the number of tap weight sets and to achieve fast convergence, the conjugate centrosymmetry property of the tap weight set is used. The average bit error rate (BER) performance in a frequency-selective Rayleigh fading channel is evaluated by computer simulation. Also evaluated is the robustness against the frequency offset between a transmitter and a receiver.
ER -