An Efficient Connection Admission Control (CAC) for QoS Provisioning in IEEE 802.16
Service differentiation and QoS support are important aspects of Connection Admission Control (CAC) in IEEE 802.16 networks, which is left for vendors to design and implement for efficient resource utilization. In this paper, a bandwidth based Dynamic control Threshold (DT) is proposed for the connection types of IEEE 802.16 networks. The threshold is used to differentiate and prioritize connection types according to QoS requirements. The control threshold changes dynamically in order to respond to the varying traffic of connections. A performance analysis model based on Markov chains is proposed and numerical results are presented to demonstrate the performance of the proposed scheme.