Adaptive ingress admission control for differentiated services

Abstrncr . Admission eontml is a critical element for supporting Quality-of-Service in networks. We pmpase and evaluate the performance of an adaptive inadmission contml scheme that is suitable for use in a Differentiated Services Internet backbone. The pmposed scheme impmves upon the admission cuotml scheme by measur. ing the maximal arrival rate envelope at an ingress node and adding an adaptive adjustment scheme that dynamically adjusts the perceived network capacity io correlation with the rate at which a speeilied end4o-end delay bound is violated. Simulalion results are presented to show that the pmposed adaptive ingress admission mntml scheme is more effective than the egress admission mntml scheme.