Optimization of coded layered space-time architecture for OFDM systems

Heunchul Lee; Inkyu Lee

Optimization of coded layered space-time architecture for OFDM systems

Heunchul Lee, Inkyu Lee

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English
Title of host publication	Proceedings of 2004 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2004
Editors	S.J. Ko
Pages	58-62
Number of pages	5
Publication status	Published - 2004
Event	Proceedings of 2004 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2004 - Seoul, Korea, Republic of Duration: 2004 Nov 18 → 2004 Nov 19

Publication series

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

Other

Other	Proceedings of 2004 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2004
Country/Territory	Korea, Republic of
City	Seoul
Period	04/11/18 → 04/11/19

ASJC Scopus subject areas

General Engineering

Cite this

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 (Proceedings of 2004 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2004).

Research output: Chapter in Book/Report/Conference proceeding › Conference 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. 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, 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 (Proceedings of 2004 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2004).

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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.

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ER -

Optimization of coded layered space-time architecture for OFDM systems

Abstract

Publication series

Other

ASJC Scopus subject areas

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