Date Added: Nov 2011
This paper considers reliable transmission of general correlated sources over the Multiple-Access Relay Channel (MARC) and the Multiple-Access Broadcast Relay Channel (MABRC). In MARCs only the destination is interested in a reconstruction of the sources, while in MABRCs both the relay and the destination want to reconstruct the sources. The authors assume that both the relay and the destination have correlated side information. They find sufficient conditions for reliable communication based on operational separation, as well as necessary conditions on the achievable source-channel rate.