Zero-Delay Joint Source-Channel Coding for a Bivariate Gaussian on a Gaussian MAC
Information Theory
2015-03-18 v2 math.IT
Abstract
In this paper, delay-free, low complexity, joint source-channel coding (JSCC) for transmission of two correlated Gaussian memoryless sources over a Gaussian Multiple Access Channel (GMAC) is considered. The main contributions of the paper are two distributed JSCC schemes: one discrete scheme based on nested scalar quantization, and one hybrid discrete-analog scheme based on a scalar quantizer and a linear continuous mapping. The proposed schemes show promising performance which improve with increasing correlation and are robust against variations in noise level. Both schemes exhibit a constant gap to the performance upper bound when the channel signal-to-noise ratio gets large.
Keywords
Cite
@article{arxiv.1101.5716,
title = {Zero-Delay Joint Source-Channel Coding for a Bivariate Gaussian on a Gaussian MAC},
author = {Paal Anders Floor and Anna N. Kim and Niklas Wernersson and Tor A. Ramstad and Mikael Skoglund and Ilangko Balasingham},
journal= {arXiv preprint arXiv:1101.5716},
year = {2015}
}
Comments
27 page draft