Soft-Output Fast Successive-Cancellation List Decoder for Polar Codes
Information Theory
2024-12-24 v2 math.IT
Abstract
The soft-output successive cancellation list (SOSCL) decoder provides a methodology for estimating the a-posteriori probability log-likelihood ratios by only leveraging the conventional SCL decoder for polar codes. However, the sequential nature of SCL decoding leads to a high decoding latency for the SO-SCL decoder. In this paper, we propose a soft-output fast SCL (SO-FSCL) decoder by incorporating node-based fast decoding into the SO-SCL framework. Simulation results demonstrate that the proposed SO-FSCL decoder significantly reduces the decoding latency without loss of performance compared with the SO-SCL decoder.
Keywords
Cite
@article{arxiv.2410.15071,
title = {Soft-Output Fast Successive-Cancellation List Decoder for Polar Codes},
author = {Li Shen and Yongpeng Wu and Yin Xu and Xiaohu You and Xiqi Gao and Wenjun Zhang},
journal= {arXiv preprint arXiv:2410.15071},
year = {2024}
}
Comments
This paper has been accepted by IEEE WCNC 2025