Secure Downlink Transmission in Massive MIMO System with Zero-Forcing Precoding

Zhu J, Bhargava VK, Schober R (2014)

Publication Language: English

Publication Type: Conference contribution

Publication year: 2014

Event location: Barcelona ES

ISBN: 978-3-8007-3621-8

Abstract

We analyze the ergodic secrecy rate of multi-cell downlink systems assuming that the number of base station (BS) antennas per cell, the number of mobile users, and the number of eavesdropper antennas are all growing without bound. Our analysis includes the effect of uplink channel estimation, pilot contamination, and path-loss. The BS employs zero-forcing (ZF) precoding and artificial noise (AN) generation for secrecy enhancement. Our analytical results reveal that in a secure massive multiple-input multiple-output (MIMO) system employing AN, ZF precoding outperforms matched-filter (MF) precoding, unless the signal power is very small, inter-cell interference is severe, or the effect of pilot contamination is dominant.

Authors with CRIS profile

Jun Zhu Lehrstuhl für Digitale Übertragung Robert Schober Lehrstuhl für Digitale Übertragung

Involved external institutions

University of British Columbia CA Canada (CA)

How to cite

APA:

Zhu, J., Bhargava, V.K., & Schober, R. (2014). Secure Downlink Transmission in Massive MIMO System with Zero-Forcing Precoding. In VDE (Eds.), Proceedings of the European Wireless 2014; 20th European Wireless Conference. Barcelona, ES.

MLA:

Zhu, Jun, Vijay K. Bhargava, and Robert Schober. "Secure Downlink Transmission in Massive MIMO System with Zero-Forcing Precoding." Proceedings of the European Wireless 2014; 20th European Wireless Conference, Barcelona Ed. VDE, 2014.

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