Turbo (iterative) decoding of a unitary space-time code with a convolutional code

Sudharman K. Jayaweera, H. Vincent Poor

Research output: Contribution to journalConference articlepeer-review

14 Scopus citations


A turbo decoding scheme for a non-coherent, unitary space-time modulated [3] communication system employing an FEC convolutional code is proposed. The channel is assumed to be Rayleigh fading with neither the transmitter nor the receiver knowing the channel coefficients. The convolutional encoder is applied to the information symbols before performing unitary space-time coding. Treating the combination of convolutional code and the unitary space-time code as a serially concatenated turbo code, it is shown that the performance can be improved by iterative decoding. Simulation results suggest that the iterative decoder can offer significant performance gain over conventional, non-iterative method and also can help close the performance gap between coherent (e.g. Alamouti type) and non-coherent techniques by a significant margin.

Original languageEnglish (US)
Pages (from-to)1020-1024
Number of pages5
JournalIEEE Vehicular Technology Conference
StatePublished - 2002
EventVehicular Technology Conference - Birmingham, AL, United States
Duration: May 6 2002May 9 2002

All Science Journal Classification (ASJC) codes

  • Applied Mathematics
  • Electrical and Electronic Engineering
  • Computer Science Applications


  • Turbo decoding
  • Unitary space-time modulation


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