Asymptotic Capacity of Multi-User MIMO Correlated Channels

Abstract : This paper introduces a new formula to derive explicit capacity expressions of a class of communication schemes, including single-cell multi-user MIMO and multi-cell point-topoint MIMO, when the wireless channels have separable variance profiles and the system dimensions grow large. As an introductory example, we study point-to-point MIMO channels with multicell interference, in downlink. In this setting, we provide new asymptotic capacity expressions when single-user decoding or MMSE decoding are used. Simulations are shown to corroborate the theoretical claims, even when the number of transmit/receive antennas is not very large.
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Romain Couillet, Merouane Debbah, Jack Silverstain. Asymptotic Capacity of Multi-User MIMO Correlated Channels. IEEE Information Theory Workshop ITW2009, Oct 2009, Italy. 5 p. ⟨hal-00407930⟩

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