8 research outputs found
On the Performance of Low-Altitude UAV-Enabled Secure AF Relaying with Cooperative Jamming and SWIPT
This paper proposes a novel cooperative secure unmanned aerial vehicle (UAV)
aided transmission protocol, where a source (Alice) sends confidential
information to a destination (Bob) via an energy-constrained UAV-mounted
amplify-and-forward (AF) relay in the presence of a ground eavesdropper (Eve).
We adopt destination-assisted cooperative jamming (CJ) as well as simultaneous
wireless information and power transfer (SWIPT) at the UAV-mounted relay to
enhance physical-layer security (PLS) and transmission reliability. Assuming a
low altitude UAV, we derive connection probability (CP), secrecy outage
probability (SOP), instantaneous secrecy rate, and average secrecy rate (ASR)
of the proposed protocol over Air-Ground (AG) channels, which are modeled as
Rician fading with elevation-angel dependent parameters. By simulations, we
verify our theoretical results and demonstrate significant performance
improvement of our protocol, when compared to conventional transmission
protocol with ground relaying and UAV-based transmission protocol without
destination-assisted jamming. Finally, we evaluate the impacts of different
system parameters and different UAV's locations on the proposed protocol in
terms of ASR.Comment: 10 pages, 9 figures, Submitted for possible journal publicatio