Soft-Output from Covered Space Decoding of Product Codes

Fuente: arXiv
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Main Authors: Janz, Tim, Obermüller, Simon, Zunker, Andreas, Brink, Stephan ten
Format: Preprint
Published: 2025
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author Janz, Tim
Obermüller, Simon
Zunker, Andreas
Brink, Stephan ten
author_facet Janz, Tim
Obermüller, Simon
Zunker, Andreas
Brink, Stephan ten
contents In this work, we propose a new soft-input soft-output decoder called soft-output from covered space (SOCS) decoder. It estimates the a posteriori reliability based on the space explored by a list decoder, i.e., the set of vectors for which the list decoder knows whether they are codewords. This approach enables a more accurate calculation of the a posteriori reliability and results in gains of up to 0.25$\,$dB for turbo product decoding with SOCS compared to Chase-Pyndiah decoding.
format Preprint
id arxiv_https___arxiv_org_abs_2504_15204
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Soft-Output from Covered Space Decoding of Product Codes
Janz, Tim
Obermüller, Simon
Zunker, Andreas
Brink, Stephan ten
Information Theory
In this work, we propose a new soft-input soft-output decoder called soft-output from covered space (SOCS) decoder. It estimates the a posteriori reliability based on the space explored by a list decoder, i.e., the set of vectors for which the list decoder knows whether they are codewords. This approach enables a more accurate calculation of the a posteriori reliability and results in gains of up to 0.25$\,$dB for turbo product decoding with SOCS compared to Chase-Pyndiah decoding.
title Soft-Output from Covered Space Decoding of Product Codes
topic Information Theory
url https://arxiv.org/abs/2504.15204