Joint channel response, phase noise estimation and decoding in time-selective flat Rayleigh fading channels

Qiaolin Shi, Desheng Shi, Guibo Wang, Nan Wu*, Hua Wang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper, we propose a joint channel impulse response (CIR), phase noise (PHN) estimation and decoding algorithm for time-selective flat Rayleigh fading channels. Building on the first-order autoregressive model approximation for both the time evolutions of CIR and PHN, a factor graph of the joint a posteriori probability function is constructed and the sum-product algorithm is applied to derive messages on factor graph. Implementation complexity is reduced by utilizing canonical distribution approach to approximate the messages as Gaussian and Tikhonov distributions. Simulation results show that the proposed joint estimation and decoding algorithm significantly outperforms the existing methods in fading channels impacted by PHN.

Original languageEnglish
Title of host publication2015 International Conference on Wireless Communications and Signal Processing, WCSP 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781467376860
DOIs
Publication statusPublished - 30 Nov 2015
EventInternational Conference on Wireless Communications and Signal Processing, WCSP 2015 - Nanjing, China
Duration: 15 Oct 201517 Oct 2015

Publication series

Name2015 International Conference on Wireless Communications and Signal Processing, WCSP 2015

Conference

ConferenceInternational Conference on Wireless Communications and Signal Processing, WCSP 2015
Country/TerritoryChina
CityNanjing
Period15/10/1517/10/15

Keywords

  • Channel estimation
  • Factor graph
  • Iterative receiver
  • Phase noise estimation
  • Sum-product algorithm

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