Secure Communication in Massive MIMO Relay Networks

Gayan Amarasuriya, Rafael Schaefer1, H. Vincent Poor2

  • 1Technische Universität Berlin
  • 2Princeton University

Details

Category

Technical Session: Poster

Theme

Signal Processing for Wireless Communications

Sessions

10:15 - 11:30 | Wed 6 Jul | Pentland A | R7

Massive MIMO Communications

Abstract

In this paper, a secure communication system model for massive multiple-input multiple-output (MIMO) relay networks is investigated. Specifically, physical layer secure transmission is provisioned in multi-user relay networks by employing massive MIMO, linear precoder/detectors and artificial noise generation in the presence of a passive multi-antenna eavesdropper. In particular, the achievable asymptotic secrecy rate for infinitely many relay antennas is derived. The use of random artificial noise shaping matrices is advocated for massive MIMO relays for the sake of reducing the system implementation complexity. The effects of the numbers of antennas at the relay and the eavesdropper in achieving secure communication are investigated by comparing the corresponding achievable secrecy rates.

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