Suboptimal Decoding of Vector Quantization over a Frequency-Selective Rayleigh Fading CDMA Channel

Son X. NGUYEN; Ha H. NGUYEN

doi:10.1093/ietcom/e89-b.5.1688

Suboptimal Decoding of Vector Quantization over a Frequency-Selective Rayleigh Fading CDMA Channel

Son X. NGUYEN, Ha H. NGUYEN

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The complexity of the optimal decoding for vector quantization (VQ) in code-division multiple access (CDMA) communications prohibits implementation. It was recently shown in [1] that a suboptimal scheme that combines a soft-output multiuser detector and individual VQ decoders provides a flexible tradeoff between decoder's complexity and performance. The work in [1], however, only considers an AWGN channel model. This paper extends the technique in [1] to a frequency-selective Rayleigh fading channel. Simulation results indicate that such a suboptimal decoder also performs very well over this type of channel.

Publication: IEICE TRANSACTIONS on Communications Vol.E89-B No.5 pp.1688-1691

Publication Date: 2006/05/01

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Online ISSN: 1745-1345

DOI: 10.1093/ietcom/e89-b.5.1688

Type of Manuscript: LETTER

Category: Wireless Communication Technologies

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Son X. NGUYEN, Ha H. NGUYEN, "Suboptimal Decoding of Vector Quantization over a Frequency-Selective Rayleigh Fading CDMA Channel" in IEICE TRANSACTIONS on Communications, vol. E89-B, no. 5, pp. 1688-1691, May 2006, doi: 10.1093/ietcom/e89-b.5.1688.
Abstract: The complexity of the optimal decoding for vector quantization (VQ) in code-division multiple access (CDMA) communications prohibits implementation. It was recently shown in [1] that a suboptimal scheme that combines a soft-output multiuser detector and individual VQ decoders provides a flexible tradeoff between decoder's complexity and performance. The work in [1], however, only considers an AWGN channel model. This paper extends the technique in [1] to a frequency-selective Rayleigh fading channel. Simulation results indicate that such a suboptimal decoder also performs very well over this type of channel.
URL: https://globals.ieice.org/en_transactions/communications/10.1093/ietcom/e89-b.5.1688/_p

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@ARTICLE{e89-b_5_1688,
author={Son X. NGUYEN, Ha H. NGUYEN, },
journal={IEICE TRANSACTIONS on Communications},
title={Suboptimal Decoding of Vector Quantization over a Frequency-Selective Rayleigh Fading CDMA Channel},
year={2006},
volume={E89-B},
number={5},
pages={1688-1691},
abstract={The complexity of the optimal decoding for vector quantization (VQ) in code-division multiple access (CDMA) communications prohibits implementation. It was recently shown in [1] that a suboptimal scheme that combines a soft-output multiuser detector and individual VQ decoders provides a flexible tradeoff between decoder's complexity and performance. The work in [1], however, only considers an AWGN channel model. This paper extends the technique in [1] to a frequency-selective Rayleigh fading channel. Simulation results indicate that such a suboptimal decoder also performs very well over this type of channel.},
keywords={},
doi={10.1093/ietcom/e89-b.5.1688},
ISSN={1745-1345},
month={May},}

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TY - JOUR
TI - Suboptimal Decoding of Vector Quantization over a Frequency-Selective Rayleigh Fading CDMA Channel
T2 - IEICE TRANSACTIONS on Communications
SP - 1688
EP - 1691
AU - Son X. NGUYEN
AU - Ha H. NGUYEN
PY - 2006
DO - 10.1093/ietcom/e89-b.5.1688
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E89-B
IS - 5
JA - IEICE TRANSACTIONS on Communications
Y1 - May 2006
AB - The complexity of the optimal decoding for vector quantization (VQ) in code-division multiple access (CDMA) communications prohibits implementation. It was recently shown in [1] that a suboptimal scheme that combines a soft-output multiuser detector and individual VQ decoders provides a flexible tradeoff between decoder's complexity and performance. The work in [1], however, only considers an AWGN channel model. This paper extends the technique in [1] to a frequency-selective Rayleigh fading channel. Simulation results indicate that such a suboptimal decoder also performs very well over this type of channel.
ER -