Turbo Equalization Scheme for Polar-AFDM System

Xinhao Qu, Xiaohong Shen, Haiyan Wang, Xiangxiang Li

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

Abstract

In the next generation of mobile communication, robustness in high mobility scenarios is an important indicator. Affine Frequency Division Multiplexing (AFDM) is a potential powerful candidate waveform due to its high tolerance for DelayDoppler channels. In this letter, we studied the Polar encoded AFDM system and designed a Turbo equalizer based on Linear Minimum Mean Squared Error (LMMSE) Equalization and Belief Propagation (BP) decoding algorithm to improve the error performance of this system. Information can effectively counteract interference in Delay-Doppler channels after Turbo Equalization. Simulation has been implemented and shows its advantages over OFDM and OCDM systems in high-mobility scenarios.

Original languageEnglish
Title of host publication2024 16th International Conference on Communication Software and Networks, ICCSN 2024
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages278-282
Number of pages5
ISBN (Electronic)9798331506322
DOIs
StatePublished - 2024
Event16th International Conference on Communication Software and Networks, ICCSN 2024 - Ningbo, China
Duration: 18 Oct 202420 Oct 2024

Publication series

Name2024 16th International Conference on Communication Software and Networks, ICCSN 2024

Conference

Conference16th International Conference on Communication Software and Networks, ICCSN 2024
Country/TerritoryChina
CityNingbo
Period18/10/2420/10/24

Keywords

  • AFDM
  • DelayDoppler Channel
  • Polar Coding
  • Turbo Equalization

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