Fig. 2From: Robust beamforming designs for multiuser MISO downlink with per-antenna power constraintsIllustration of α ∗(λ) in (8), \(\tilde {\alpha }^{*}({\lambda })\) in (23), and \(\hat {\alpha }^{*}(\lambda)\) in (29), M = 4, K = 3, SNR = 10 dBBack to article page