Comparative study of iterative channel estimation schemes for turbo decoding with antenna diversity reception in Rayleigh fading

Ryohei Kimura, Deepshikha Garg, Fumiyuki Adachi

Research output: Contribution to journalLetterpeer-review

Abstract

Turbo decoding with coherent detection requires accurate channel estimation. In this paper, we consider outer-turbo channel estimation (OTCE), which carries out iterative channel estimation before turbo decoding, and inner-turbo channel estimation (ITCE), which incorporates iterative channel estimation into turbo decoding process. The average bit error rate (BER) performances with OTCE and ITCE in a frequency nonselective Rayleigh fading channel with antenna diversity reception are evaluated by means of computer simulations to be compared. It is found that although ITCE is superior to OTCE, OTCE provides the average BER performance very close to ITCE when dual antenna diversity reception is used.

Original languageEnglish
Pages (from-to)1149-1152
Number of pages4
JournalIEICE Transactions on Communications
VolumeE86-B
Issue number3
Publication statusPublished - 2003 Mar

Keywords

  • Iterative channel estimation
  • Iterative decoding
  • Pilot symbol
  • Turbo decoding

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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