Source Broadcasting and Asymmetric Data Transmission with Bandwidth Expansion

We consider the broadcasting of a single Gaussian source over a two-user Gaussian broadcast channel with bandwidth expansion. In addition to the source broadcasting the encoder sends a message that should be conveyed reliably just to the ``higher quality'' user. Conditioned on the message rate, we derive an outer bound on the set of attainable mean squared-error distortion pairs at the two users which extends the Reznic-Feder-Zamir bound. Based on the outer bound and an inner bound that we derive we characterize the set of achievable energy-distortion exponents for this problem

·      M.Sc. thesis under the supervision of Prof. Shraga Bross