Call Admission Control with QoS Class Modification
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概要
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In IP networks, QoS guarantee is becoming important, to allow renl-time services such as voice over IP (VoIP) and video conferencing. To guarantee various QoS requirements from a variety of applications, call admission control (CAC) together with a service differentiation mechanism is useful. Service differentiation enables the network to provide different QoSs to various applications, by assigning priority classes to calls. Then, CAC limits the acceptance of new calls to prevent the QoSs of established calls from degrading. For this environment, we propose a CAC method in which priority classes assigned to already established calls arc changed adaptively. Classes may be modified when the CAC function handles the acceptance of a new call if that can decrease the blocking probability. The effect of the method is shown by numerical examples.
- 2003-02-01
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- Call Admission Control with QoS Class Modification
- Suppression of Parasitic Bipolar Action and Improvement of Hot-Carrier Reliability in Fully-Depleted Metal-Oxide-Semiconductor Field Effect Transistors on SIMOX (Separation by IMplanted Oxygen) Introducing Recombination Centers near Source Juncti