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
EventProceedings of 2004 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2004 - Seoul, Korea, Republic of
Duration: 2004 Nov 182004 Nov 19

Publication series

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

Other

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

ASJC Scopus subject areas

  • Engineering(all)

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