Joint Source-Channel Coding for the Multiple-Access Channel with Correlated Sources
Information Theory
2019-04-19 v2 math.IT
Abstract
This paper studies the random-coding exponent of joint source-channel coding for the multiple-access channel with correlated sources. For each user, by defining a threshold, the messages of each source are partitioned into two classes. The achievable exponent for correlated sources with two message-dependent input distributions for each user is determined and shown to be larger than that achieved using only one input distribution for each user. A system of equations is presented to determine the optimal thresholds maximizing the achievable exponent. The obtained exponent is compared with the one derived for the MAC with independent sources.
Cite
@article{arxiv.1901.05778,
title = {Joint Source-Channel Coding for the Multiple-Access Channel with Correlated Sources},
author = {Arezou Rezazadeh and Josep Font-Segura and Alfonso Martinez and Albert Guillén i Fàbregas},
journal= {arXiv preprint arXiv:1901.05778},
year = {2019}
}