Wei-Cheng Liao, Tsung-Hui Chang, Wing-Kin Ma, Chong-Yung Chi. QoS-Based Transmit Beamforming in the Presence of Eavesdroppers: An Optimized Artificial-Noise-Aided Approach. IEEE Transactions on Signal Processing, 59(3):1202-1216, 2011. [doi]
Abstract is missing.