On limiting characterizations of memoryless multiuser capacityregions
Cheng, R.S.; Verdu, S.
Information Theory, IEEE Transactions on
Volume 39, Issue 2, Mar 1993 Page(s):609 - 612
Digital Object Identifier   10.1109/18.212290
Summary:The restriction to Gaussian inputs in the limiting expression for the capacity regions of memoryless Gaussian interference and multiple-access channels is shown to fall short of achieving capacity even if the inputs are allowed to be dependent and nonstationary. In addition, the equality between the limiting and the single-letter characterizations of memoryless multiple-access channel capacity is established directly, without recourse to independent coding theorems

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