一种基于非线性压缩变换和ldpc编码的相干光GFDM系统PAPR降低方案

2022 20th International Conference on Optical Communications and Networks (ICOCN) Pub Date : 2022-08-12 DOI:10.1109/ICOCN55511.2022.9901270

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

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引用次数: 0

摘要

提出了一种基于非线性压缩变换(NCT)和ldpc编码的降噪方法，以降低GFDM系统的高降噪。该方案利用NCT和ldpc编码的性能互补性，有效实现优势叠加。采用该方案建立了一个80 gbaud的PDM-CO-GFDM系统。当CCDF = 1e-2， $\mu$ = 2时，P APR比原GFDM方案(GFDM- ldpc方案)降低5.16 dB。当BER为1e-2时，OSNR比原GFDM方案降低了3.1 dB，比GFDM- nct方案降低了3.9 dB，比GFDM- ldpc方案降低了0.5 dB。仿真结果表明，该方案在降低GFDM的P、APR和误码率方面具有较好的性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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

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 $\mu$ 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.

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来源期刊

2022 20th International Conference on Optical Communications and Networks (ICOCN)

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