Adaptive Symbol Detection and Branch Pruning MLSE for Quatrobinary Shaping FTN WDM System

Jiayi Hao, Zhipei Li*, Chenchen Wang, Dong Guo, Huan Chang, Xiaolong Pan, Fu Wang, Ze Dong, Ran Gao, Xiangjun Xin

*Corresponding author for this work

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

Abstract

In this paper, a pilot-aided adaptive symbol detection scheme (PA-SDS) with adaptive branch pruning maximum likelihood sequence estimation (ABP-MLSE) is proposed. For 70 GBaud QPSK signals in a 50 GHz FTN WDM system, the computational complexity of this algorithm is reduced to 23.91% of the original while maintaining comparable bit error rate (BER) performance.

Original languageEnglish
Title of host publication2025 23rd International Conference on Optical Communications and Networks, ICOCN 2025
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798331548759
DOIs
Publication statusPublished - 2025
Externally publishedYes
Event23rd International Conference on Optical Communications and Networks, ICOCN 2025 - Zhangjiajie, China
Duration: 28 Jul 202531 Jul 2025

Publication series

Name2025 23rd International Conference on Optical Communications and Networks, ICOCN 2025

Conference

Conference23rd International Conference on Optical Communications and Networks, ICOCN 2025
Country/TerritoryChina
CityZhangjiajie
Period28/07/2531/07/25

Keywords

  • Bandwidth limitation
  • fast-than-Nyquist
  • maximum likelihood sequence estimation
  • quatrobinary shaping

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