Low-Delay Joint Source-Channel Mappings for the Gaussian MAC

Author

Kron, Johannes ; Alajaji, Fady ; Skoglund, Mikael

Author_Institution

Sch. of Electr. Eng., R. Inst. of Technol. (KTH), Stockholm, Sweden

Volume

18

Issue

2

fYear

2014

fDate

Feb-14

Firstpage

249

Lastpage

252

Abstract

The bivariate Gaussian multiterminal source coding problem with transmission over the Gaussian multiple-access channel is studied. We propose the use of low-delay joint source - channel mappings and show how performance saturation, which is unavoidable with linear transmission, can be overcome by optimizing the mappings. The optimized mappings are in general nonlinear and perform a combination of hard and soft decision signaling for the error-resilient transmission of analog data.

Keywords

Gaussian channels; combined source-channel coding; Gaussian MAC; Gaussian multiple-access channel; Gaussian multiterminal source coding; decision signaling; error resilient transmission; low-delay joint source-channel mappings; performance saturation; Algorithm design and analysis; Correlation; Joints; Receivers; Signal to noise ratio; Source coding; Gaussian multiple-access channel; Joint source-channel coding; correlated sources; low-delay transmission; mean square error; multi-terminal source coding;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2013.120413.132088

Filename

6682636