Quaternary Message Passing Decoding of LDPC Codes: Stability Analysis and Error Floor
Paper i proceeding, 2021

We revisit a coarsely quantized message passing decoding algorithm for low-density parity-check (LDPC) code ensembles, named quaternary message passing (QMP). Particularly, we analyze the performance of unstructured LDPC codes under QMP decoding by means of density evolution. The impact of degree-2 and degree-3 variable nodes on the error floor performance is also discussed. We design a code for QMP that performs within 0.55 dB of the 5G LDPC code at a block error rate of 10−4 .

Författare

Emna Ben Yacoub

Technische Universität München

Balázs Matuz

Deutsches Zentrums für Luft- und Raumfahrt (DLR)

Alexandre Graell I Amat

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

Gianluigi Liva

Deutsches Zentrums für Luft- und Raumfahrt (DLR)

11th International Symposium on Topics in Coding (ISTC)


978-1-6654-0943-8 (ISBN)

2021 11th International Symposium on Topics in Coding (ISTC)
Montreal, Canada,

Ämneskategorier

Datorteknik

Telekommunikation

Kommunikationssystem

Styrkeområden

Informations- och kommunikationsteknik

DOI

10.1109/ISTC49272.2021.9594240

ISBN

9781665409438

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2022-02-07