New approach for coded layered space-time OFDM systems

Heunchul Lee, Inkyu Lee

Research output: Contribution to journalConference articlepeer-review

23 Citations (Scopus)


In this paper, we investigate coded layered space-time architectures for frequency-selective fading MIMO-OFDM channels. We start with a comprehensive signal model including error propagations. Based on the signal model, we derive an improved signal detector in the mean-square-error criterion. 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
Pages (from-to)608-612
Number of pages5
JournalIEEE International Conference on Communications
Publication statusPublished - 2005
Event2005 IEEE International Conference on Communications, ICC 2005 - Seoul, Korea, Republic of
Duration: 2005 May 162005 May 20

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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