Practical approaches for connection admission control in multiservice networks

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Original languageEnglish
Article number796175
Pages (from-to)172-177
Journal / PublicationIEEE International Conference on Networks, ICON
Publication statusPublished - 1999
Externally publishedYes


Title1999 IEEE International Conference on Networks, ICON 1999
CityBrisbane, QLD
Period28 September - 1 October 1999


In this paper, we test and compare the effectiveness of various connection admission control (CAC) schemes when confronted by heavy arrivals of new connection requests in a link with different server rates. Four CAC schemes are used for this study. The first two schemes are based on the use of a priori traffic information and the model-based approach of computing the desired service bandwidth. For the remaining two schemes, a measurement-based alternative is implemented instead, and hence the desired service bandwidth is estimated by online measurements of the aggregated traffic behavior. Simulation results have shown that the measurement-based schemes are efficient CAC procedures because of the inclusions of a conservative link occupancy-based threshold and an adaptive weight factor that maintain the procedures around the desired link utilization, whilst meeting the QoS. © 1999 IEEE.