Large-scale analysis of linear massive MIMO Precoders in the Presence of Phase Noise

Krishnan R, Khanzadi MR, Krishnan N, Wu Y, Graell I Amat A, Eriksson T, Schober R (2015)

Publication Type: Conference contribution

Publication year: 2015

Publisher: Institute of Electrical and Electronics Engineers Inc.

Pages Range: 1172-1177

Conference Proceedings Title: 2015 IEEE International Conference on Communication Workshop, ICCW 2015

Event location: London GB

ISBN: 9781467363051

DOI: 10.1109/ICCW.2015.7247336

Abstract

We study the impact of phase noise on the downlink performance of a multi-user multiple-input multiple-output system, where the base station (BS) employs a large number of transmit antennas M. We consider a setup where the BS employs Mosc free-running oscillators, and M/Mosc antennas are connected to each oscillator. For this configuration, we analyze the impact of phase noise on the performance of regularized zero-forcing (RZF) precoding, when M and the number of users K are asymptotically large, while the ratio M/K = β is fixed. We analytically show that the impact of phase noise on the signal-to-interference-plus-noise ratio (SINR) can be quantified as an effective reduction in the quality of the channel state information available at the BS when compared to a system without phase noise. As a consequence, we observe that as Mosc increases, the SINR of the RZF precoder degrades as the interference power increases, and the desired signal power decreases. On the other hand, the variance of the random phase variations caused by the BS oscillators reduces with increasing Mosc. Through simulations, we verify our analytical results, and study the performance of the RZF precoder for different phase noise and channel noise variances.

Authors with CRIS profile

Yongpeng Wu Lehrstuhl für Digitale Übertragung Robert Schober Lehrstuhl für Digitale Übertragung

Involved external institutions

Chalmers University of Technology / Chalmers tekniska högskola SE Sweden (SE) Rutgers, The State University of New Jersey US United States (USA) (US)

How to cite

APA:

Krishnan, R., Khanzadi, M.R., Krishnan, N., Wu, Y., Graell I Amat, A., Eriksson, T., & Schober, R. (2015). Large-scale analysis of linear massive MIMO Precoders in the Presence of Phase Noise. In 2015 IEEE International Conference on Communication Workshop, ICCW 2015 (pp. 1172-1177). London, GB: Institute of Electrical and Electronics Engineers Inc..

MLA:

Krishnan, R., et al. "Large-scale analysis of linear massive MIMO Precoders in the Presence of Phase Noise." Proceedings of the IEEE International Conference on Communication Workshop, ICCW 2015, London Institute of Electrical and Electronics Engineers Inc., 2015. 1172-1177.

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