5 research outputs found
Secrecy Outage on Transmit Antenna Selection/Maximal Ratio Combining in MIMO Cognitive Radio Networks
This paper investigates the secrecy outage performance
of transmit antenna selection (TAS)/maximal ratio
combining (MRC) in multiple input multiple output (MIMO)
cognitive radio networks (CRNs) over Rayleigh fading channels.
In the considered system, a secondary user (SU-TX) equipped
with NA (NA 1) antennas uses TAS to transmit confidential
messages to another secondary user (SU-RX), which is equipped
with NB (NB 1) antennas and adopts MRC scheme to
process multiple received signals. Meanwhile, an eavesdropper
equipped with NE (NE 1) antennas also adopts MRC scheme
to overhear the transmitted information between SU-TX and
SU-RX. SU-TX adopts the underlay strategy to guarantee the
quality of service of the primary user without spectrum sensing.
In this paper, we derive the exact and asymptotic closed-form
expressions for the secrecy outage probability. Simulations are
conducted to validate the accuracy of the analysis.ARC Discovery Projects Grant DP150103905