DFE State-Tracking Demapper for Soft-Input FEC in 800G Data Center Interconnects

Kaiquan Wu, Gabriele Liga, Jeffrey Lee, Lotte Paulissen, Jamal Riani, Alex Alvarado

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Abstract

A simple one-step state model is used to track the DFE error propagation for 4-PAM. The knowledge of DFE output states is used to improve LLR accuracy. Demapping via DFE state tracking outperforms bit-interleaving and precoding schemes for the 802.3ca LDPC code by 0.76 dB.
Original languageEnglish
Title of host publicationEuropean Conference and Exhibition on Optical Communication 2022
PublisherInstitute of Electrical and Electronics Engineers
ChapterWe3C.2
Number of pages4
ISBN (Electronic)978-1-957171-15-9
Publication statusPublished - 20 Dec 2022
Event48th European Conference on Optical Communication, ECOC 2022 - Congress Center Basel, Basel, Switzerland
Duration: 18 Sept 202222 Sept 2022
Conference number: 48
https://www.ecoc2022.org/

Conference

Conference48th European Conference on Optical Communication, ECOC 2022
Abbreviated titleECOC
Country/TerritorySwitzerland
CityBasel
Period18/09/2222/09/22
Internet address

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