Abstract
We consider both analytically and via Monte Carlo simulation the variation of the information theoretic capacity of multiple-input, multiple output (MIMO) communication systems. We present a way of explicitly examining the effect of interference on the MIMO sub-channel gains. Using this, we derive asymptotic lower bounds on capacity with many interferers and in high interference-to-noise ratio and present simulation results for them. We also study the behaviour of the capacity as a function of the number of interferers, the interference-to-noise ratio (INR) and the transmit and receive array sizes. It is found that, in interference, the benefit of providing multiple transmit antennas is very small indeed from a capacity perspective, whilst the number of receive antennas is critical both to the capacity and the number of users the system can mitigate interference from. Unusually, it is seen that, with a modification of the MIMO channel matrix to incorporate interference, higher correlation in the channel yields higher capacity rather than the more familiar desire for decorrelated channels
| Translated title of the contribution | Capacity limits of MIMO channels with co-channel interference |
|---|---|
| Original language | English |
| Pages (from-to) | 703 - 707 |
| Number of pages | 4 |
| Journal | IEEE 59th Vehicular Technology Conference, 2004 (VTC 2004-Spring) |
| Volume | 2 |
| DOIs | |
| Publication status | Published - 17 May 2004 |
| Event | 59th Vehicular Technology Conference 2004 (VTC 2004-Spring) - Milan, Italy Duration: 1 May 2004 → … |
Bibliographical note
Publisher: Institute of Electrical and Electronics Engineers (IEEE)Name and Venue of Conference: Vehicular Technology Conference 2004 (VTC 2004-Spring)
Conference Organiser: Institute of Electrical and Electronics Engineers (IEEE)
Rose publication type: Conference contribution
Sponsorship: The authors wish to thank UK EPSRC and Philips Research Laboratories (PRL) for supporting this work
Terms of use: Copyright © 2004 IEEE. Reprinted from Proceedings of IEEE 59th Vehicular Technology Conference. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to [email protected].
Contributor (Other): Institute of Electrical and Electronics Engineers (IEEE)
Keywords
- MIMO