Impact of DFE on Soft-Input LDPC Decoding for 50G PON

DFE induced error correlation and mutual information (MI) degradation penalize the 50G PON LDPC code soft-input decoding performance. Bit-interleaving across multiple codewords mitigates the correlated error penalty, but not the MI degradation penalty.

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Bibliographic Details
Published in2021 Optical Fiber Communications Conference and Exhibition (OFC) pp. 1 - 3
Main Authors Mahadevan, Amitkumar, Lefevre, Yannick, Lanneer, Wouter, Cautereels, Paul, van Veen, Doutje, Kaneda, Noriaki, Houtsma, Vincent
Format Conference Proceeding
LanguageEnglish
Published OSA 01.06.2021
Subjects
Correlation
Decoding
Degradation
Mutual information
Optical fiber communication
Parity check codes
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Summary:DFE induced error correlation and mutual information (MI) degradation penalize the 50G PON LDPC code soft-input decoding performance. Bit-interleaving across multiple codewords mitigates the correlated error penalty, but not the MI degradation penalty.