Fig. 5From: Spectrum sharing via hybrid cognitive players evaluated by an M/D/1 queuing modelThe two players’ normalized utilities versus the number of secondary users with n p = 1, λ p = 10 kbps, λ s = 1 kbps and different μ ranging from 40 to 100 kbps for the Stackelberg games in Section 3.2 and cost function defined with Eq. 11 Back to article page