Probabilistic Shaping for Asymmetric Channels and Low-Density Parity-Check Codes
Information Theory
2023-05-24 v1 math.IT
Abstract
An algorithm is proposed to encode low-density parity-check (LDPC) codes into codewords with a non-uniform distribution. This enables power-efficient signalling for asymmetric channels. We show gains of 0.9 dB for additive white Gaussian noise (AWGN) channels with on-off keying modulation using 5G LDPC codes.
Cite
@article{arxiv.2305.13376,
title = {Probabilistic Shaping for Asymmetric Channels and Low-Density Parity-Check Codes},
author = {Thomas Wiegart and Linfang Wang and Diego Lentner and Richard D. Wesel},
journal= {arXiv preprint arXiv:2305.13376},
year = {2023}
}
Comments
submitted to ISTC 2023