Optimization of coded layered space-time architecture for OFDM systems

Heunchul Lee, Inkyu Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper proposes a new approach for Coded Layered Space-Time OFDM systems over frequency-selective channels. We start with a comprehensive signal model including error propagations. We derive an improved signal detector in the mean-square-error criterion and the corresponding optimal detection ordering. We also describe the optimal soft bit Log-Likelihood Ratio (LLR) value computation method by taking the decision errors into account for soft-input Viterbi decoder. We compare the proposed scheme with the conventional V-BLAST system and show that significant performance improvement at high data rates can be attained.

Original languageEnglish
Title of host publicationProceedings of 2004 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2004
EditorsS.J. Ko
Pages58-62
Number of pages5
Publication statusPublished - 2004 Dec 1
EventProceedings of 2004 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2004 - Seoul, Korea, Republic of
Duration: 2004 Nov 182004 Nov 19

Other

OtherProceedings of 2004 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2004
CountryKorea, Republic of
CitySeoul
Period04/11/1804/11/19

Fingerprint

Orthogonal frequency division multiplexing
Mean square error
Detectors

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Lee, H., & Lee, I. (2004). Optimization of coded layered space-time architecture for OFDM systems. In S. J. Ko (Ed.), Proceedings of 2004 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2004 (pp. 58-62)

Optimization of coded layered space-time architecture for OFDM systems. / Lee, Heunchul; Lee, Inkyu.

Proceedings of 2004 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2004. ed. / S.J. Ko. 2004. p. 58-62.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Lee, H & Lee, I 2004, Optimization of coded layered space-time architecture for OFDM systems. in SJ Ko (ed.), Proceedings of 2004 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2004. pp. 58-62, Proceedings of 2004 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2004, Seoul, Korea, Republic of, 04/11/18.
Lee H, Lee I. Optimization of coded layered space-time architecture for OFDM systems. In Ko SJ, editor, Proceedings of 2004 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2004. 2004. p. 58-62
Lee, Heunchul ; Lee, Inkyu. / Optimization of coded layered space-time architecture for OFDM systems. Proceedings of 2004 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2004. editor / S.J. Ko. 2004. pp. 58-62
@inproceedings{bc8ff83b6aee4098b026fb5f158c6ce6,
title = "Optimization of coded layered space-time architecture for OFDM systems",
abstract = "This paper proposes a new approach for Coded Layered Space-Time OFDM systems over frequency-selective channels. We start with a comprehensive signal model including error propagations. We derive an improved signal detector in the mean-square-error criterion and the corresponding optimal detection ordering. We also describe the optimal soft bit Log-Likelihood Ratio (LLR) value computation method by taking the decision errors into account for soft-input Viterbi decoder. We compare the proposed scheme with the conventional V-BLAST system and show that significant performance improvement at high data rates can be attained.",
author = "Heunchul Lee and Inkyu Lee",
year = "2004",
month = "12",
day = "1",
language = "English",
isbn = "0780386396",
pages = "58--62",
editor = "S.J. Ko",
booktitle = "Proceedings of 2004 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2004",

}

TY - GEN

T1 - Optimization of coded layered space-time architecture for OFDM systems

AU - Lee, Heunchul

AU - Lee, Inkyu

PY - 2004/12/1

Y1 - 2004/12/1

N2 - This paper proposes a new approach for Coded Layered Space-Time OFDM systems over frequency-selective channels. We start with a comprehensive signal model including error propagations. We derive an improved signal detector in the mean-square-error criterion and the corresponding optimal detection ordering. We also describe the optimal soft bit Log-Likelihood Ratio (LLR) value computation method by taking the decision errors into account for soft-input Viterbi decoder. We compare the proposed scheme with the conventional V-BLAST system and show that significant performance improvement at high data rates can be attained.

AB - This paper proposes a new approach for Coded Layered Space-Time OFDM systems over frequency-selective channels. We start with a comprehensive signal model including error propagations. We derive an improved signal detector in the mean-square-error criterion and the corresponding optimal detection ordering. We also describe the optimal soft bit Log-Likelihood Ratio (LLR) value computation method by taking the decision errors into account for soft-input Viterbi decoder. We compare the proposed scheme with the conventional V-BLAST system and show that significant performance improvement at high data rates can be attained.

UR - http://www.scopus.com/inward/record.url?scp=21444431564&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=21444431564&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:21444431564

SN - 0780386396

SP - 58

EP - 62

BT - Proceedings of 2004 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2004

A2 - Ko, S.J.

ER -