%0 Journal Article
%A DAN Zhen-lei
%A GU Chen-wei
%A LIN Min
%A ZHU Wei-ping
%A WANG Xiao-xiao
%T Secure Beamforming Scheme for Multi-Antenna UAV Communication Systems
%D 2020
%R 10.13190/j.jbupt.2020-108
%J Journal of Beijing University of Posts and Telecommunications
%P 103-109
%V 43
%N 6
%X Aming at multiple legitimate users and a single eavesdropper in the downlink transmission system of multi antenna unmanned aerial vehicle(UAV) communication in the sixth generation of mobile communications system network, two secure beamforming schemes are proposed on the basic of the eavesdropper statistics channel state information is known. One is based on the criterion of secure rate maximization of the system under the condition of limited total transmit power. A zero forcing beamforming scheme is proposed, and the closed solutions of the weight vector and power allocation factor of beamforming are obtained. The other is based on the criterion of maximizing the enhanced signal to noise ratio of the system under the condition of limited total transmit power. A fractional programming combined with alternative direction method of multipliers (ADMM) is proposed to realize the design of beamforming weight vector and power allocation factor. The simulation results show that, compared with the zero forcing algorithm, the ADMM algorithm can effectively improve the security performance of the system.
%U https://journal.bupt.edu.cn/EN/10.13190/j.jbupt.2020-108