A space-time block-coded OFDM scheme for unknown frequency-selective fading channels

M. Uysal, N. Al-Dhahir, C. N. Georghiades

Research output: Contribution to conferencePaperpeer-review

Abstract

We introduce a space-time block-coded orthogonal frequency-division multiplexing (STBC-OFDM) scheme for frequency-selective fading channels which does not require channel knowledge either at the transmitter or at the receiver. The decoding algorithm is based on generalized maximum-likelihood sequence estimation. Due to the assumed orthogonality structure of STBC, the decoding rule reduces to a single step. Its form also allows the derivation of a recursive expression, which can be easily implemented by a Viterbi-type algorithm. We investigate the performance of the proposed scheme over two-tap Rayleigh fading channels. Simulation results show the performance of the proposed recursive-type receiver to be near optimum.

Original languageEnglish (US)
PagesG93-G97
StatePublished - 2001
Event12th International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2001) - San Diego, CA, United States
Duration: Sep 30 2001Oct 3 2001

Conference

Conference12th International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2001)
Country/TerritoryUnited States
CitySan Diego, CA
Period9/30/0110/3/01

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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