Compact QC-LDPC Block and SC-LDPC Convolutional Codes for Low-Latency Communications
Information Theory
2018-09-14 v1 math.IT
Abstract
Low decoding latency and complexity are two important requirements of channel codes used in many applications, like machine-to-machine communications. In this paper, we show how these requirements can be fulfilled by using some special quasi-cyclic low-density parity-check block codes and spatially coupled low-density parity-check convolutional codes that we denote as compact. They are defined by parity-check matrices designed according to a recent approach based on sequentially multiplied columns. This method allows obtaining codes with girth up to 12. Many numerical examples of practical codes are provided.
Cite
@article{arxiv.1809.04662,
title = {Compact QC-LDPC Block and SC-LDPC Convolutional Codes for Low-Latency Communications},
author = {Massimo Battaglioni and Alireza Tasdighi and Marco Baldi and Mohammad H. Tadayon and Franco Chiaraluce},
journal= {arXiv preprint arXiv:1809.04662},
year = {2018}
}
Comments
5 pages, 1 figure, presented at IEEE PIMRC 2018