A PAPR Reduction scheme Based on Nonlinear Companding Transform and LDPC-coded for a Coherent Optical GFDM system

Xiangyu Liu, Qi Zhang, Xiangjun Xin, Ran Gao, Yongjun Wang, Feng Tian, Qinghua Tian, Leijing Yang

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

Abstract

A P APR reduction method based on nonlinear-companding-Transform (NCT) and LDPC-coded is proposed to reduce high P APR of GFDM systems. This scheme utilizes the performance complementarity of NCT and LDPC-coded to effectively achieve superposition of advantages. An 80-Gbaud PDM-CO-GFDM system employing the proposed scheme is set up. When CCDF is 1e-2 and μ is 2, P APR is reduced by 5.16 dB compared with original GFDM scheme (GFDM-LDPC scheme). When BER is 1e-2, OSNR is reduced by 3.1 dB compared with original GFDM scheme, 3.9 dB compared with GFDM-NCT scheme,-0.5 dB compared with GFDM-LDPC scheme. Simulation results show that the proposed scheme has better performances in reducing the P APR and BER for GFDM.

Original languageEnglish
Title of host publicationICOCN 2022 - 20th International Conference on Optical Communications and Networks
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665458986
DOIs
Publication statusPublished - 2022
Event20th International Conference on Optical Communications and Networks, ICOCN 2022 - Shenzhen, China
Duration: 12 Aug 202215 Aug 2022

Publication series

NameICOCN 2022 - 20th International Conference on Optical Communications and Networks

Conference

Conference20th International Conference on Optical Communications and Networks, ICOCN 2022
Country/TerritoryChina
CityShenzhen
Period12/08/2215/08/22

Keywords

  • Fiber optics communication
  • GFDM
  • LDPC-coded
  • Nonlinear Companding Transform
  • PAPR

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