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MIMO channel capacity in co-channel interference

Research output: Working paperWorking paper and Preprints

Original languageEnglish
Publication dateSep 2003
Pages13 p
StatePublished

Abstract

In this paper we investigate the performance of MIMO systems in co-channel interference. We present a way of explicitly examining the effect of interference on the MIMO sub-channel gains. Using this, we derive upper and lower asymptotic bounds on capacity with many interferers and in high interference-to-noise ratio. Simulation results are presented for these bounds and for the performance of MIMO systems in a variety of situations as a function of the number of cochannel interferers and as a function of interference-to-noise ratio. Unusually, it is seen that, with a slight modification of the MIMO channel matrix to incorporate interference, higher correlation in the channel yields higher capacity. We also simulate the effect of a priori knowledge of the channel and interference covariance at the transmitter and evaluate the capacity gain that such knowledge offers

Additional information

Additional information: A paper presented to the 8th Management Committee Meeting of COST 273 : Towards Mobile Broadband Multimedia Networks, held in Prague, Czech Republic, September 24-26, 2003 Contributor: European Cooperation in the Field of Scientific and Technical Research (EURO-COST)

Documents

  • TD-03-166

    Author final version (often known as postprint) , 245 KB, PDF-document

Research areas

  • interference-to-noise ratio, number of interferers, MIMO, co-channel interference, capacity

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