Analysis and compensation for the joint effects of HPA nonlinearity, I/Q imbalance and crosstalk in MIMO beamforming systems

Qi, J. and Aissa, S. (2011) Analysis and compensation for the joint effects of HPA nonlinearity, I/Q imbalance and crosstalk in MIMO beamforming systems. In: 2011 IEEE Wireless Communications and Networking Conference. IEEE, pp. 1562-1567. ISBN 9781612842554 doi: 10.1109/WCNC.2011.5779363

Abstract/Summary

In this paper, we investigate the joint effects of high-power amplifier (HPA) nonlinearity, in-phase/quadrature-phase (I/Q) imbalance and crosstalk, on the performance of multiple-input multiple-output (MIMO) transmit beamforming (TB) systems, and propose a compensation method for the three impairments together. The performance of the MIMO TB system equipped with the proposed compensation scheme is evaluated in terms of average symbol error probability and capacity when transmissions are performed over uncorrelated Rayleigh fading channels. Numerical results are provided and show the effects on performance of several system parameters, namely, the HPA parameters, image-leakage ratio, crosstalk, numbers of antennas, length of pilot symbols and phase-shift keying modulation order.

Item Type	Book or Report Section
URI	https://reading-clone.eprints-hosting.org/id/eprint/33447
Item Type	Book or Report Section
Refereed	Yes
Divisions	Science
Uncontrolled Keywords	I/Q imbalance; MIMO beamforming systems; average symbol error probability; compensation scheme; crosstalk; high-power amplifier nonlinearity; image-leakage ratio; in-phase/quadrature-phase imbalance; multiple-input multiple-output transmit beamforming; phase-shift keying modulation order; uncorrelated Rayleigh fading channels; array signal processing; channel estimation; crosstalk; estimation; MIMO; radio frequency; receivers
Publisher	IEEE
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