Direct Decoder of Uplink Space-Time Block Coded MC-CDMA Systems

Yanxing ZENG; Qinye YIN

doi:10.1093/ietcom/e88-b.2.452

Direct Decoder of Uplink Space-Time Block Coded MC-CDMA Systems

Yanxing ZENG, Qinye YIN

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The uplink of a space-time block coded multicarrier modulation code division multiple access (MC-CDMA) system equipped with a uniform linear array (ULA) at the base station is studied. A blind decoder that provides closed-form solutions of both transmitted symbol sequences and directions of arrival (DOAs) for all active users in one macrocell is derived without the uplink space-time vector channel estimation. The decoder uses an ESPRIT-like method to separate multiple co-channel users with different impinging DOAs. As a result, the DOAs of multiple users are obtained. In particular, a set of signal spaces, every one of which is spanned by the coded symbol sequences of an individual user, are also obtained. From these signal spaces, the original symbol sequences of multiple users are estimated by exploiting the special structure of space-time block coding (STBC) in combination with the finite alphabet property of transmitted symbols. Performance of the proposed scheme is evaluated by extensive computer simulations.

Publication: IEICE TRANSACTIONS on Communications Vol.E88-B No.2 pp.452-462

Publication Date: 2005/02/01

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DOI: 10.1093/ietcom/e88-b.2.452

Type of Manuscript: Special Section PAPER (Special Section on Multi-carrier Signal Processing Techniques for Next Generation Mobile Communications--Part2)

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Yanxing ZENG, Qinye YIN, "Direct Decoder of Uplink Space-Time Block Coded MC-CDMA Systems" in IEICE TRANSACTIONS on Communications, vol. E88-B, no. 2, pp. 452-462, February 2005, doi: 10.1093/ietcom/e88-b.2.452.
Abstract: The uplink of a space-time block coded multicarrier modulation code division multiple access (MC-CDMA) system equipped with a uniform linear array (ULA) at the base station is studied. A blind decoder that provides closed-form solutions of both transmitted symbol sequences and directions of arrival (DOAs) for all active users in one macrocell is derived without the uplink space-time vector channel estimation. The decoder uses an ESPRIT-like method to separate multiple co-channel users with different impinging DOAs. As a result, the DOAs of multiple users are obtained. In particular, a set of signal spaces, every one of which is spanned by the coded symbol sequences of an individual user, are also obtained. From these signal spaces, the original symbol sequences of multiple users are estimated by exploiting the special structure of space-time block coding (STBC) in combination with the finite alphabet property of transmitted symbols. Performance of the proposed scheme is evaluated by extensive computer simulations.
URL: https://globals.ieice.org/en_transactions/communications/10.1093/ietcom/e88-b.2.452/_p

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@ARTICLE{e88-b_2_452,
author={Yanxing ZENG, Qinye YIN, },
journal={IEICE TRANSACTIONS on Communications},
title={Direct Decoder of Uplink Space-Time Block Coded MC-CDMA Systems},
year={2005},
volume={E88-B},
number={2},
pages={452-462},
abstract={The uplink of a space-time block coded multicarrier modulation code division multiple access (MC-CDMA) system equipped with a uniform linear array (ULA) at the base station is studied. A blind decoder that provides closed-form solutions of both transmitted symbol sequences and directions of arrival (DOAs) for all active users in one macrocell is derived without the uplink space-time vector channel estimation. The decoder uses an ESPRIT-like method to separate multiple co-channel users with different impinging DOAs. As a result, the DOAs of multiple users are obtained. In particular, a set of signal spaces, every one of which is spanned by the coded symbol sequences of an individual user, are also obtained. From these signal spaces, the original symbol sequences of multiple users are estimated by exploiting the special structure of space-time block coding (STBC) in combination with the finite alphabet property of transmitted symbols. Performance of the proposed scheme is evaluated by extensive computer simulations.},
keywords={},
doi={10.1093/ietcom/e88-b.2.452},
ISSN={},
month={February},}

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TY - JOUR
TI - Direct Decoder of Uplink Space-Time Block Coded MC-CDMA Systems
T2 - IEICE TRANSACTIONS on Communications
SP - 452
EP - 462
AU - Yanxing ZENG
AU - Qinye YIN
PY - 2005
DO - 10.1093/ietcom/e88-b.2.452
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E88-B
IS - 2
JA - IEICE TRANSACTIONS on Communications
Y1 - February 2005
AB - The uplink of a space-time block coded multicarrier modulation code division multiple access (MC-CDMA) system equipped with a uniform linear array (ULA) at the base station is studied. A blind decoder that provides closed-form solutions of both transmitted symbol sequences and directions of arrival (DOAs) for all active users in one macrocell is derived without the uplink space-time vector channel estimation. The decoder uses an ESPRIT-like method to separate multiple co-channel users with different impinging DOAs. As a result, the DOAs of multiple users are obtained. In particular, a set of signal spaces, every one of which is spanned by the coded symbol sequences of an individual user, are also obtained. From these signal spaces, the original symbol sequences of multiple users are estimated by exploiting the special structure of space-time block coding (STBC) in combination with the finite alphabet property of transmitted symbols. Performance of the proposed scheme is evaluated by extensive computer simulations.
ER -