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A new joint packet scheduling/admission control framework for multi-service wireless networks

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3 Author(s)
Long, Fei ; School of EEE, Nanyang Technological University, Singapore ; Feng, Gang ; Tang, Junhua

Quality of service (QoS) provision is an important and indispensable function for multi-service wireless networks. In this paper, we present a new scheduling/admission control framework, including an efficient rate-guaranteed opportunistic scheduling (ROS) scheme and a coordinated admission control (ROS-CAC) policy to support statistic QoS guarantee in multi-service wireless networks. Based on our proposed mathematical model, we derive the probability distribution function (PDF) of queue length under ROS and deduce the packet loss rate (PLR) for individual flows. The new admission control policy makes admission decision for a new incoming flow to ensure that the PLR requirements of all flows (including the new flow) are satisfied. The numerical results based on ns-2 simulations demonstrate the effectiveness of the new joint packet scheduling/admission control framework.

Published in:

Communications and Networks, Journal of  (Volume:7 ,  Issue: 4 )

Date of Publication:

Dec. 2005

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