Optical probabilistic shaping DMT system employing deep learning assisted forward error correction decoding

Wenhao Lei; Jiafei Fan; Ran An; Jichen He; Lin Zhou

doi:10.1117/12.3008245

24 November 2023 Optical probabilistic shaping DMT system employing deep learning assisted forward error correction decoding

Wenhao Lei, Jiafei Fan, Ran An, Jichen He, Lin Zhou

Author Affiliations +

Proceedings Volume 12935, Fourteenth International Conference on Information Optics and Photonics (CIOP 2023); 1293555 (2023) https://doi.org/10.1117/12.3008245
Event: Fourteenth International Conference on Information Optics and Photonics (CIOP 2023), 2023, Xi’an, China

Abstract

In this paper, an intensity modulation and direct detection (IM-DD) discrete multi-tone (DMT) interconnection system employing polar coded and deep learning-assisted forward error correction decoding probabilistic shaping 16 quadrature amplitude modulation (PS-16QAM) is studied. By employing many-to-one (MTO) based PS to achieve signal Gaussian distribution model, the proposed optical DMT system is with the advantages of shaping overhead free profile, and optimized polar coded modulation architecture. To overcome the ambiguous problem for the overlapping symbol decision in PS, a deep learning assisted forward error correction decoding is proposed for belief propagation (BP) based polar decoding. The computational complexity of deep learning assisted polar decoding is superior to the original BP decoding one, and with faster rate convergence and better optical transmission performance. Simulation results in a 100Gb/s optical DMT transmission system present that, the deep learning assisted polar coded PS-16QAM signal achieves 0.38-dB superior receiver power sensitivity compared with conventional polar coded system over 10-km standard single mode fiber transmission.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Wenhao Lei, Jiafei Fan, Ran An, Jichen He, and Lin Zhou "Optical probabilistic shaping DMT system employing deep learning assisted forward error correction decoding", Proc. SPIE 12935, Fourteenth International Conference on Information Optics and Photonics (CIOP 2023), 1293555 (24 November 2023); https://doi.org/10.1117/12.3008245

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