Fair intelligent admission control over DiffServ network

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Conference Proceeding
IEEE International Conference on Networks, ICON, 2003, pp. 501 - 506
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The basic DiffServ model lacks mechanisms to prevent itself from being overload and to inform its internal capacity to the outside world. This paper addresses the problem by presenting a Fair Intelligent Admission Control (FIAC) over an enhanced-DiffServ architecture. The central idea is to make admission decision based on both informed network-status and traffic QoS requirements at the edge node. This model has several advantages : (1) it is backward compatible with DiffServ, (2) it adapts to traffic load and network state changes, and (3) it provides interactive communication between QoS requirements and DiffServ network capability. In this paper, we use simulation to evaluate the performance of DiffServ with or without FIAC. The performance demonstrates that the new scheme is able to admit traffic fairly and achieve edge-to-edge QoS under heavy traffic conditions and network state changes. ©2003 IEEE.
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