Li Yao, Youjiang Liu, Jian Zhang, Yudong He, Yongtao Qiu, Dalong Yang, Tao Cao. Secure beamforming method for artificial-noise-aided multiuser broadcast system with users of different importance under secrecy outage probability constraint. IET Communications, 14(19):3380-3387, 2020. [doi]
Abstract is missing.