Zero-Delay Joint Source-Channel Coding for a Bivariate Gaussian on a Gaussian MAC
2012 (English)In: IEEE Transactions on Communications, ISSN 0090-6778, E-ISSN 1558-0857, Vol. 60, no 10, 3091-3102 p.Article in journal (Refereed) Published
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 improves with increasing correlation and are robust against variations in noise level. Both schemes also exhibit a constant gap to the performance upper bound when the channel signal-to-noise ratio gets large.
Place, publisher, year, edition, pages
2012. Vol. 60, no 10, 3091-3102 p.
Joint source-channel coding, memoryless source-channel mappings, bivariate Gaussian, Gaussian multiple access channel
IdentifiersURN: urn:nbn:se:kth:diva-105662DOI: 10.1109/TCOMM.2012.071912.110456ISI: 000310195700033ScopusID: 2-s2.0-84867849458OAI: oai:DiVA.org:kth-105662DiVA: diva2:571744
FunderSwedish Research CouncilVinnovaICT - The Next Generation
QC 201211232012-11-232012-11-232013-04-11Bibliographically approved