On the effect of I/Q imbalance on MIMO transmit-receive diversity systems

Qi, J. and Aissa, S. (2009) On the effect of I/Q imbalance on MIMO transmit-receive diversity systems. In: 2009 IEEE Wireless Communications and Networking Conference. IEEE, pp. 1-5. ISBN 9781424429479 doi: 10.1109/WCNC.2009.4917854

Abstract/Summary

In practice, all I/Q signal processing receivers face the problem of I/Q imbalance. In this paper, we investigate the effect of I/Q imbalance on the performance of MIMO maximal ratio combining (MRC) systems that perform the combining at the radio frequency (RF) level, thereby requiring only one RF chain. Based on a system modeling that takes the I/Q imbalance into account, we evaluate the performance in terms of average symbol error probability (SEP), outage probability and system capacity, which are derived considering transmission over uncorrelated Rayleigh fading channels. Numerical results are provided to illustrate the effects of system parameters, such as the image- leakage ratio, numbers of transmit and receive antennas, and modulation order of quadrature amplitude modulation (QAM), on the system performance.

Item Type	Book or Report Section
URI	https://reading-clone.eprints-hosting.org/id/eprint/33451
Item Type	Book or Report Section
Refereed	Yes
Divisions	Science
Uncontrolled Keywords	I/Q imbalance; MIMO transmit-receive diversity systems; average symbol error probability; image-leakage ratio; maximal ratio combining systems; outage probability; quadrature amplitude modulation; radio frequency level; receive antennas; signal processing receivers; system capacity; transmit antenna; uncorrelated Rayleigh fading channels; capacity planning; diversity reception; error probability; face; MIMO; modeling; Quadrature amplitude modulation; radio frequency; receivers; signal processing
Publisher	IEEE
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