A Call Admission Control Algorithm for Long-lived and Short-lived Flows
|Keywords:||允入控制;長短封包流;Call Admission Control||Issue Date:||2004||Abstract:||null
As Internet grows rapidly and bandwidth increases, ISP or CDN operators are able
to provide high-data-rate applications for more and more customers. But owing to the
drawbacks of the original Internet best effort design, such network will often be in chaos
if we do not employ any QoS mechanism.
CAC (call admission control) is one of QoS mechanisms and it maintains performance
by limiting system utilization. However, the most conventional CAC algorithms
are utilizatoin-based and measurement-based CAC algorithm, both have become important
research topics. Among the research work, most of them wants to increase system
utilization but not to degrade the quality of service.
In this thesis, we propose a call admission control algorithm, which handles longlive
and short-live dlows differently. Under such mechanism, we show that not only
one can guarantee the quality of each flow, but it is also possible to improve the system
Finally, we employ simulation to valide the effectiveness of this CAC algorithm to
support streaming media services.
|Appears in Collections:||電信工程學研究所|
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