On Optimum End-to-End Distortion of Spatially Correlated MIMO Systems

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Executive Summary

In this paper, the authors investigate the behaviors of the optimum end-to-end distortion of spatially correlated, Multiple-Input-Multiple-Output (MIMO) systems. Assuming Rayleigh fading channel and the transmitter perfectly knows the instantaneous channel rate, they derive an analytic expression of the tight lower bound of the end-to-end mean quadratic distortion at any SNR for transmitting a white thermal noise source, in terms of the spatial correlation matrix, antenna numbers, the ratio of source-bandwidth to channel-bandwidth, the ratio of Signal power to Noise power (SNR) and the source power

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