Joint Source-Channel Coding for the Transmission of Correlated Sources over Two-Way Channels

A joint source-channel coding (JSCC) scheme based on hybrid digital/analog coding is proposed for the transmission of correlated sources over discrete-memoryless two-way channels (DM-TWCs). The scheme utilizes the correlation between the sources in generating channel inputs, thus enabling the users...

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Vydáno v:Proceedings / IEEE International Symposium on Information Theory s. 1322 - 1326
Hlavní autoři: Weng, Jian-Jian, Alajaji, Fady, Linder, Tamas
Médium: Konferenční příspěvek
Jazyk:angličtina
Vydáno: IEEE 01.07.2019
Témata:
Channel coding
Correlation
Decoding
Distortion
hybrid coding
Indexes
joint source-channel coding
lossy transmission
Network information theory
Propagation losses
two-way channels
ISSN:2157-8117
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Shrnutí:A joint source-channel coding (JSCC) scheme based on hybrid digital/analog coding is proposed for the transmission of correlated sources over discrete-memoryless two-way channels (DM-TWCs). The scheme utilizes the correlation between the sources in generating channel inputs, thus enabling the users to coordinate their transmission to combat channel noise. The hybrid scheme also subsumes prior coding methods such as rate-one separate source-channel coding and uncoded schemes for two-way lossy transmission, as well as the correlation-preserving coding scheme for (almost) lossless transmission. Moreover, we derive a distortion outer bound for the source-channel system using a genie-aided argument. A complete JSSC theorem for a class of correlated sources and DM-TWCs whose capacity region cannot be enlarged via interactive adaptive coding is also established. Examples that illustrate the theorem are given.
ISSN:2157-8117
DOI:10.1109/ISIT.2019.8849577