Adaptive Step-size Iterative Equalization for Underwater Communication

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Abstract

This paper presents a fully adaptive Minimum Mean Square Error (MMSE) iterative equalization with a joint phase estimation, using various adaptive step-sizes scheme. To meet the requirement of fast convergence and low MSE over time-varying channels, we propose an original self-optimized algorithm whose step-sizes are updated adaptively and assisted by soft-information provided by the channel decoder in an iterative manner. Simulation results show that our proposal achieves better performance over various multipath time-varying channels, compared to the conventional equalizer using a fixed step-size.

Original languageEnglish
Title of host publicationOCEANS 2021
Subtitle of host publicationSan Diego - Porto
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9780692935590
DOIs
Publication statusPublished - 1 Jan 2021
EventOCEANS 2021: San Diego - Porto - San Diego, United States
Duration: 20 Sept 202123 Sept 2021

Publication series

NameOceans Conference Record (IEEE)
Volume2021-September
ISSN (Print)0197-7385

Conference

ConferenceOCEANS 2021: San Diego - Porto
Country/TerritoryUnited States
CitySan Diego
Period20/09/2123/09/21

Keywords

  • Adaptive algorithms
  • Phase estimation
  • Turbo equalization

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