Message-Passing Receivers for Single Carrier Systems with Frequency-Domain Equalization

Chuanzong Zhang, Carles Navarro Manchón, Zhongyong Wang, Bernard Henri Fleury

Research output: Contribution to journalLetterResearchpeer-review

7 Citations (Scopus)
391 Downloads (Pure)

Abstract

In this letter, we design iterative receiver algorithms for joint frequency-domain equalization and decoding in a single carrier system assuming perfect channel state information. Based on an approximate inference framework that combines belief propagation (BP) and the mean field (MF) approximation, we propose two receiver algorithms with, respectively, parallel and sequential message-passing schedules in the MF part. A recently proposed receiver based on generalized approximate message passing (GAMP) is used as a benchmarking reference. The simulation results show that the BP-MF receiver with sequential passing of messages achieves the best BER performance at the expense of higher computational complexity compared to that of the GAMP receiver. The parallel BP-MF receiver has complexity similar to that of GAMP, but its low convergence rate yields poor performance, especially under high signal-to-noise ratio conditions.
Original languageEnglish
JournalI E E E Signal Processing Letters
Volume22
Issue number4
Pages (from-to)404-407
Number of pages4
ISSN1070-9908
DOIs
Publication statusPublished - 2015

Keywords

  • Iterative receiver
  • SC-FDE
  • message-passing

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