Soft-Output from Covered Space Decoding of Product Codes
Information Theory
2025-07-21 v3 math.IT
Abstract
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 0.25dB for turbo product decoding with SOCS compared to Chase-Pyndiah decoding.
Keywords
Cite
@article{arxiv.2504.15204,
title = {Soft-Output from Covered Space Decoding of Product Codes},
author = {Tim Janz and Simon Obermüller and Andreas Zunker and Stephan ten Brink},
journal= {arXiv preprint arXiv:2504.15204},
year = {2025}
}
Comments
6 pages, 2 figures, 2 tables