Figure 2
From: A robust beamformer design for underlay cognitive radio networks using worst case optimization
CDF of the interference due to the secondary network at a primary RX. Empirical CDF of the interference due to the secondary network at first primary RX for different values of ξ. A network with parameters n t = 4,N = 2 and K = 2 is considered. The interference threshold for the primary network is 1 (0 dB). The empirical CDF is calculated over different channel errors for a fixed estimated channel realization.