Networking

On Gaussian MIMO Broadcast Channels with Common and Private Messages

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Executive Summary

The authors study the Gaussian Multiple-Input Multiple-Output (MIMO) broadcast channel with common and private messages. They first obtain an outer bound for the capacity region of the two-user discrete memoryless broadcast channel with common and private messages. They next show that if jointly Gaussian random variables are sufficient to evaluate this outer bound for the Gaussian MIMO broadcast channel, the Dirty-Paper Coding (DPC) region is the capacity region of the Gaussian MIMO broadcast channel with common and private messages.

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