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This work considers the joint source-channel problem of transmitting a Gaussian source over a two-user multiple-input multiple-output (MIMO) broadcast channel. We show the existence of non-trivial channels, where the optimal distortion pair (which for high signal-to-noise ratios equals the point-to-point distortions of the individual users) may be achieved. A condition for existence of a joint triangularization...
We consider transmission of a colored Gaussian source through a power constrained colored Gaussian broadcast channel subject to a mean-squared error distortion measure. It is well known that separation of source and channel coding cannot achieve the point R(D) = C simultaneously for more than one receiver. We characterize the distortion region achieved by the recently proposed joint source/channel...
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