Probabilistic Constellation Shaping and Subcarrier Multiplexing for Nonlinear Fiber Channels

Junho Cho; Han Sun

European Conference on Optical Communication (ECOC) 2022
Technical Digest Series (Optica Publishing Group, 2022),
paper We3C.4

Probabilistic Constellation Shaping and Subcarrier Multiplexing for Nonlinear Fiber Channels

Junho Cho and Han Sun

European Conference and Exhibition on Optical Communication 2022

Basel Switzerland
18–22 September 2022
ISBN: 978-1-957171-15-9

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Coding and Modulation (We3C)

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J. Cho and H. Sun, "Probabilistic Constellation Shaping and Subcarrier Multiplexing for Nonlinear Fiber Channels," in European Conference on Optical Communication (ECOC) 2022, J. Leuthold, C. Harder, B. Offrein, and H. Limberger, eds., Technical Digest Series (Optica Publishing Group, 2022), paper We3C.4.

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Abstract

We show how the symbol rate affects the occurrence of nonlinear interference in systems with finite-length probabilistic constellation shaping. The results suggest that it is necessary to flexibly change the symbol rate according to link parameters and shaping block length to achieve optimal system performance.

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