A novel call admission control for multimedia network

Modern network is expected to support multimedia traffic, therefore how to guarantee the QoS of multimedia network is the emerging technology. CAC (call admission control) plays an important role in the QoS guarantee of multimedia network. Noticing that many CAC schemes aim to satisfying QoS requirement and upgrading network utilization, but they ignore the fairness principle in network. Directly and simple using these CAC schemes, it will appear the phenomenon of unbalance that the narrow band calls block the broad band calls. So, this paper proposes a fair call admission control scheme by introducing call hold control. Numerical results show that the new scheme not only realizes the balancing accessing machinery to all calls, but also decrease CBP (call block probability) and improves network utilization.