Fig. 7From: Spectrum sharing via hybrid cognitive players evaluated by an M/D/1 queuing modelThe two players’ normalized utilities versus the number of primary users with n s = 3, λ p = 10 kbps, λ s = 1 kbps, and μ = 100 kbps and three cost functions with C 1, C 2, and C 3 defined by Eqs. 11, 22, and 23, respectivelyBack to article page