Figure 8From: A robust beamformer design for underlay cognitive radio networks using worst case optimizationGain pattern comparison. Gain pattern comparison for robust and non-robust beamforming designs. Network with parameters n t = 10,N = 1 and K = 3. Antennas lie in a linear array λ/2 apart, centered at a transmitter and along the direction θ = 0°. Vertical dotted lines represent the directional location of the receivers (secondary receiver θ = 45°, primary receivers θ = 60°, 90°, 120°).Back to article page