Figure 4From: Dynamic spectrum allocation with admission control based on cognitive radio for QoS support in multiple wireless networkDropping probabilities of SUs for the two schemes-Varying the WSP 1 cognitive arrival rate. (a) Dropping probabilities of SUs using Sch1. (b) Dropping probabilities of own SUs using Sch2. (c) Dropping probabilities of foreign SUs using Sch2.Back to article page