CTH09-6: Capacity of MIMO Systems in the Presence of Interference

In a multiuser scenario, we study the capacity of multiple-input/multiple-output (MIMO) communication systems in the presence of multiple MIMO co-channel interferers. We assume that transmitters have no information about the channel status and that all links undergo Rayleigh distributed fading; no restrictions are made to the transmission power levels or on the number of interferers and antennas, so that many possible cases can be studied, including distributed MIMO. In order to be able to cover all possible scenarios, we generalize the known determinant representation of hypergeometric functions with matrix arguments to the case when the argument matrices have eigenvalues with arbitrary multiplicity. Possible extensions and numerical results are then sketched.