Nonlinear Channel Estimation and Signal Detection for Quantized OFDM System

Ting Liu, Hao Jiang, Zhen Chen, Hongming Zhang, Xi Yang, Feng Shu

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

This letter studies the channel estimation and signal detection in the nonlinear orthogonal frequency division multiplexing (OFDM) system. The pilot-assisted channel estimator is obtained based on the theory of the Bayesian posteriori minimum mean square error (MMSE). Moreover, the quadrature amplitude modulation (QAM) signal detection is achieved in the principle of extrinsic expectation and extrinsic variance passing. Numerical results verify the superior performance of our proposal with relatively low computational complexity.

Original languageEnglish
Pages (from-to)2772-2776
Number of pages5
JournalIEEE Communications Letters
Volume27
Issue number10
DOIs
StatePublished - 1 Oct 2023

Keywords

  • OFDM
  • channel estimation
  • nonlinear measurements
  • signal detection

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