Dynamic Call Admission Control with Joint Connection-level and Packet-level QoS Support in Wireless Multimedia Networks
نویسندگان
چکیده
In this paper, we investigate joint provision of connection-level QoS (in terms of the new call blocking probability and the handoff dropping probability) and packet-level QoS (in terms of the delay and packet loss probability). A dynamic call admission control (CAC) scheme for realistic wireless multimedia VBR traffic is presented. The proposed CAC scheme can optimize the packet-level QoS under certain constraints on connection-level QoS. Moreover, its low complexity feature enables practical deployment. Simulation results have demonstrated that the proposed dynamic CAC scheme achieves better performance than the optimal stationary CAC scheme when applied to heterogeneous and varying traffic conditions found in wireless multimedia networks.
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