Source Coding for a Simple Network with Receiver Side Information

Details Source Coding for a Simple Network with Receiver Side Information Source Coding for a Simple Network with Receiver Side Information

2008-05-27

arxiv.org/abs/0805.4053v1

Computer Science

Information Theory

To be presented at the 2008 International Symposium on Information Theory (ISIT), Toronto, Canada

Scientific paper

We consider the problem of source coding with receiver side information for the simple network proposed by R. Gray and A. Wyner in 1974. In this network, a transmitter must reliably transport the output of two correlated information sources to two receivers using three noiseless channels: a public channel which connects the transmitter to both receivers, and two private channels which connect the transmitter directly to each receiver. We extend Gray and Wyner's original problem by permitting side information to be present at each receiver. We derive inner and outer bounds for the achievable rate region and, for three special cases, we show that the outer bound is tight.

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