On Product Codes with Probabilistic Amplitude Shaping for High-Throughput Fiber-Optic Systems
Information Theory
2020-08-17 v4 math.IT
Abstract
Probabilistic amplitude shaping (PAS) can flexibly vary the spectral efficiency (SE) of fiber-optic systems. In this paper, we demonstrate the application of PAS to bit-wise hard decision decoding (HDD) of product codes (PCs) by finding the necessary conditions to select the PC component codes. We show that PAS with PCs and HDD yields gains up to dB and SE improvement up to approximately bit/channel use compared to using PCs with uniform signaling and HDD. Furthermore, we employ the recently introduced iterative bounded distance decoding with combined reliability of PCs to improve performance of PAS with PCs and HDD.
Cite
@article{arxiv.1908.04205,
title = {On Product Codes with Probabilistic Amplitude Shaping for High-Throughput Fiber-Optic Systems},
author = {Alireza Sheikh and Alexandre Graell i Amat and Alex Alvarado},
journal= {arXiv preprint arXiv:1908.04205},
year = {2020}
}
Comments
Accepted for publication in IEEE Communications Letters