Symbol Message Passing Decoding of Nonbinary Low-Density Parity-Check Codes
Paper i proceeding, 2019

We present a novel decoding algorithm for q-ary low-density parity-check codes, termed symbol message passing. The proposed algorithm can be seen as a generalization of Gallager B and the binary message passing algorithm by Lechner et al. to q-ary codes. We derive density evolution equations for the q-ary symmetric channel, compute thresholds for a number of regular low-density parity-check code ensembles, and verify those by Monte Carlo simulations of long channel codes. The proposed algorithm shows performance advantages with respect to an algorithm of comparable complexity from the literature.


F. Lázaro

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)

B. Matuz

Deutsches Zentrums für Luft- und Raumfahrt (DLR)

2019 IEEE Global Communications Conference, GLOBECOM 2019 - Proceedings


IEEE Global Communications Conference (GLOBECOM)
Waikoloa Village, USA,

Distribuerad lagring för datalagring och trådlös leverans av data

Vetenskapsrådet (VR) (2016-04253), 2016-01-01 -- 2019-12-31.





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