Iterative channel estimation and decoding in turbo coded space time systems

Sefi Ronen, Shraga I. Bross, Shlomo Shamai, Tolga M. Duman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

A non-coherent multiple antenna coded communication system over both block fading and time-selective flat fading Rayleigh channel is considered. Several iterative decoding strategies consisting of pilot symbol assisted demodulation and turbo decoding are proposed. It is shown that at a system rate of 0.9 bits per channel use, the SNR required to achieve a BER of 10-4 is only about 2 dB away from the imperfect CSI capacity lower bound. The channel estimation error variance is demonstrated to be close to the theoretical limit set by the Modified Cramer-Rao bound. The simulation results coincide with the trends dictated by recent information-theoretic analysis and demonstrate the effect that the inaccuracy of the channel estimation has on the performance of the iterative decoding scheme.

Original languageEnglish (US)
Title of host publicationIEEE Convention of Electrical and Electronics Engineers in Israel, Proceedings
Pages80-83
Number of pages4
StatePublished - 2004
Event2004 23rd IEEE Convention of Electrical and Electronics Engineers in Israel, Proceedings - Tel-Aviv, Israel
Duration: Sep 6 2004Sep 7 2004

Other

Other2004 23rd IEEE Convention of Electrical and Electronics Engineers in Israel, Proceedings
CountryIsrael
CityTel-Aviv
Period9/6/049/7/04

Keywords

  • Channel estimation
  • EM algorithm
  • Iterative receiver
  • MCRB
  • Pilot an training
  • Space time turbo code

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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