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Sequential Number-Theoretic Optimization for High-Dimensional Channel Equalization in Coherent Optical Communication Systems

  • Shuai Liu
  • , Keying Yu
  • , Yangfan Xu
  • , Xinwei Du
  • , Qian Wang
  • , Changyuan Yu

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

In this paper, we propose to jointly estimate channel distortions including the transmitter and receiver in- phase/quadrature (IQ) mismatch, frequency offset (FO) and phase noise (PN) by sequential number-theoretic optimization (SNTO) in coherent optical communication systems. A decision-feedback signal detection scheme is subsequently proposed after the joint estimation, which guarantees real-time estimation of the PN. The feasibility, accuracy and robustness of the proposed SNTO-based algorithm are verified via simulations.

Original languageEnglish
Title of host publicationProceedings of the 29th Opto-Electronics and Communications Conference, OECC 2024
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-3
Number of pages3
Edition2024
ISBN (Electronic)9798350308396
DOIs
Publication statusPublished - Apr 2025
Event29th Opto-Electronics and Communications Conference, OECC 2024 - Melbourne, Australia
Duration: 30 Jun 20244 Jul 2024

Conference

Conference29th Opto-Electronics and Communications Conference, OECC 2024
Country/TerritoryAustralia
CityMelbourne
Period30/06/244/07/24

Keywords

  • frequency offset
  • In-phase/quadrature mismatch
  • phase noise
  • sequential number-theoretic optimization

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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