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Conferences > OFC > 2024 > Th1J > Th1J.3

Advanced MLSE with Simple Soft Output Achieving High NGMI for SD-FEC in IM-DD Transmission with Severe Bandwidth Limitation

Shuto Yamamoto, Hiroki Taniguchi, Masanori Nakamura, Akira Masuda, and Etsushi Yamazaki

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Abstract

We propose a simple LLR-calculation method which modifies the LLR distribution using hard-decision information for IM-DD systems with MLSE and SD-FEC. The proposed method achieves high NGMI in 128-Gbaud PAM4 transmission with 40-GHz bandwidth limitation.

© 2024 The Author(s)

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