Physical Layer Secrecy Performance of TAS Wiretap Channels with Correlated Main and Eavesdropper Channels

Author

Ferdinand, Nuwan S. ; da Costa, Daniel Benevides ; de Almeida, Andre L. F. ; Latva-aho, Matti

Author_Institution

Centre for Wireless Commun., Univ. of Oulu, Oulu, Finland

Volume

3

Issue

1

fYear

2014

fDate

Feb-14

Firstpage

86

Lastpage

89

Abstract

This letter investigates the secrecy performance of multiple-input single-output (MISO) wiretap channels when the eavesdropper channel is correlated with the main one. Assuming that the transmitter employs a transmit antenna selection (TAS) scheme, we derive a tight closed-form expression for the secrecy outage probability and analytically evaluate the secrecy performance. An asymptotic outage expression is also derived, from which a diversity analysis is carried out. We prove that correlation between channels works in favor at medium to high signal-to-noise ratio (SNR), however it degrades the performance at low SNR.

Keywords

diversity reception; probability; radio transmitters; transmitting antennas; MISO wiretap channels; SNR; TAS wiretap channel; asymptotic outage expression; correlated main channel; diversity analysis; eavesdropper channel; multiple-input single-output wiretap channels; physical layer secrecy performance; secrecy outage probability; signal-to-noise ratio; transmit antenna selection; transmitter; Communication system security; Correlation; Fading; Security; Signal to noise ratio; Transmitting antennas; Wireless communication; Physical layer security; secrecy outage performance;

fLanguage

English

Journal_Title

Wireless Communications Letters, IEEE

Publisher

ieee

ISSN

2162-2337

Type

jour

DOI

10.1109/WCL.2013.112313.130733

Filename

6678340