Protograph-Based LDPC Code Design for Probabilistic Shaping with On-Off Keying
Information Theory
2019-01-11 v1 math.IT
Abstract
This work investigates protograph-based LDPC codes for the AWGN channel with OOK modulation. A non-uniform distribution of the OOK modulation symbols is considered to improve the power efficiency especially for low SNRs. To this end, a specific transmitter architecture based on time sharing is proposed that allows probabilistic shaping of (some) OOK modulation symbols. Tailored protograph-based LDPC code designs outperform standard schemes with uniform signaling and off-the-shelf codes by 1.1 dB for a transmission rate of 0.25 bits/channel use.
Cite
@article{arxiv.1901.03285,
title = {Protograph-Based LDPC Code Design for Probabilistic Shaping with On-Off Keying},
author = {Alexandru Dominic Git and Balázs Matuz and Fabian Steiner},
journal= {arXiv preprint arXiv:1901.03285},
year = {2019}
}
Comments
Invited Paper for CISS 2019