Figure 4From: Increasing sum-rate in large-scale cognitive radio networks by centralized power and spectrum allocationPDF of the sum-rate ratio between ELCI and LS-SCVX’s first trial, for average-scale scenarios. Three settings with M=20and K=25: 1) cell-based (N=4), 2) ad-hoc (N=M), and 3) cell-based with non-varying (referred as n. v.) channels (i.e., same channel gain over all K channels for a given link is enforced). Each PDF is based on 500 random realizations.Back to article page