It is known that, as opposed to point-to-point channel, separate source andchannel coding is not optimal in general for sending correlated sources overmultiuser channels. In some works joint source-channel coding has beeninvestigated for some certain multiuser channels; i.g., multiple access channel(MAC) and broadcast channel (BC). In this paper, we obtain a sufficientcondition for transmitting arbitrarily correlated sources over a discretememoryless BC with cooperating receivers, where the receivers are allowed toexchange messages via a pair of noisy cooperative links. It is seen that ourresults is a general form of previous ones and includes them as its specialcases.
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