Asymptotic Capacity of Multi-User MIMO Correlated Channels

Romain Couillet (1) , Merouane Debbah (2) , Jack Silverstain (3)

1 NXP Semiconductors
2 E3S - Supélec Sciences des Systèmes
3 NC State - North Carolina State University [Raleigh]

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.

Domaines: Théorie de l'information [cs.IT]; Théorie de l'information et codage [math.IT]

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⟩