Joint AIC and ML Decoder Scheme for a Space-Time Coded DS-CDMA System

JooHyun YI; Jae Hong LEE

Joint AIC and ML Decoder Scheme for a Space-Time Coded DS-CDMA System

JooHyun YI, Jae Hong LEE

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In this paper, a joint adaptive interference canceller (AIC) and maximum likelihood (ML) decoder scheme is proposed for a space-time coded DS-CDMA system with the difference between arrival times from transmit antennas. As the arrival time difference causes not only ISI and MAI, but also inter-antenna interference, performance degradation in the space-time coded DS-CDMA system is more severe than that of a regular DS-CDMA system with single transmit antenna. To mitigate the effect of the interference during space-time decoding, a joint algorithm for the proposed scheme merges adaptation process of the AIC into a ML decoding algorithm. Performance of the proposed scheme is evaluated for QPSK space-time trellis codes with two transmit antennas. It is shown that the proposed scheme achieves better performance than the conventional ML decoding scheme.

Publication: IEICE TRANSACTIONS on Communications Vol.E86-B No.8 pp.2512-2516

Publication Date: 2003/08/01

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Type of Manuscript: LETTER

Category: Wireless Communication Technology

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JooHyun YI, Jae Hong LEE, "Joint AIC and ML Decoder Scheme for a Space-Time Coded DS-CDMA System" in IEICE TRANSACTIONS on Communications, vol. E86-B, no. 8, pp. 2512-2516, August 2003, doi: .
Abstract: In this paper, a joint adaptive interference canceller (AIC) and maximum likelihood (ML) decoder scheme is proposed for a space-time coded DS-CDMA system with the difference between arrival times from transmit antennas. As the arrival time difference causes not only ISI and MAI, but also inter-antenna interference, performance degradation in the space-time coded DS-CDMA system is more severe than that of a regular DS-CDMA system with single transmit antenna. To mitigate the effect of the interference during space-time decoding, a joint algorithm for the proposed scheme merges adaptation process of the AIC into a ML decoding algorithm. Performance of the proposed scheme is evaluated for QPSK space-time trellis codes with two transmit antennas. It is shown that the proposed scheme achieves better performance than the conventional ML decoding scheme.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/e86-b_8_2512/_p

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@ARTICLE{e86-b_8_2512,
author={JooHyun YI, Jae Hong LEE, },
journal={IEICE TRANSACTIONS on Communications},
title={Joint AIC and ML Decoder Scheme for a Space-Time Coded DS-CDMA System},
year={2003},
volume={E86-B},
number={8},
pages={2512-2516},
abstract={In this paper, a joint adaptive interference canceller (AIC) and maximum likelihood (ML) decoder scheme is proposed for a space-time coded DS-CDMA system with the difference between arrival times from transmit antennas. As the arrival time difference causes not only ISI and MAI, but also inter-antenna interference, performance degradation in the space-time coded DS-CDMA system is more severe than that of a regular DS-CDMA system with single transmit antenna. To mitigate the effect of the interference during space-time decoding, a joint algorithm for the proposed scheme merges adaptation process of the AIC into a ML decoding algorithm. Performance of the proposed scheme is evaluated for QPSK space-time trellis codes with two transmit antennas. It is shown that the proposed scheme achieves better performance than the conventional ML decoding scheme.},
keywords={},
doi={},
ISSN={},
month={August},}

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TY - JOUR
TI - Joint AIC and ML Decoder Scheme for a Space-Time Coded DS-CDMA System
T2 - IEICE TRANSACTIONS on Communications
SP - 2512
EP - 2516
AU - JooHyun YI
AU - Jae Hong LEE
PY - 2003
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E86-B
IS - 8
JA - IEICE TRANSACTIONS on Communications
Y1 - August 2003
AB - In this paper, a joint adaptive interference canceller (AIC) and maximum likelihood (ML) decoder scheme is proposed for a space-time coded DS-CDMA system with the difference between arrival times from transmit antennas. As the arrival time difference causes not only ISI and MAI, but also inter-antenna interference, performance degradation in the space-time coded DS-CDMA system is more severe than that of a regular DS-CDMA system with single transmit antenna. To mitigate the effect of the interference during space-time decoding, a joint algorithm for the proposed scheme merges adaptation process of the AIC into a ML decoding algorithm. Performance of the proposed scheme is evaluated for QPSK space-time trellis codes with two transmit antennas. It is shown that the proposed scheme achieves better performance than the conventional ML decoding scheme.
ER -