Performance Evaluation of a New End-Point Admission Control Algorithm in NGN with Improved Network Utilization

 

Neda Moghim, Seyed Mostafa Safavi and Massoud Reza Hashemi
Performance Evaluation of a New End-Point Admission Control Algorithm in NGN with Improved Network Utilization
International Journal of Innovative Computing, Information and Control
ICIC 2010; ISSN 1349-4198
Volume 6, Number 7, July 2010 pp. 3067–3080

Abstract.
DiffServ is considered as a scalable solution for service differentiation in the
Internet. It applies differentiated behaviors on data packets for different quality levels on
a per hop basis (PHB). However, DiffServ cannot guarantee end to end service quality
all alone as it does not have any control on the traffic entering then etwork and the
paths which are traversed by data packets. A combination of an admission control and
a route selection mechanism joint with the DiffServ can provide necessary bullets and
nuts to provide controlled QoS. This topic has been extensively visited in the literature
and various solutions have been proposed. In this paper, a new approach is studied which
is aimed at improving the network utilization while keeping the service quality under
control. This involves a distributed end-point admission control algorithm to engineer
the traffic entering the network in which users are allowed to use lower service levels in
the routers that do not have sufficient capacity in the requested service level. This local
degradation preserves the end-to-end service quality in the acceptable level. In this way,
we can increase data throughput and also the percentage of admitted calls, which result
in higher network utilization.

Keywords:
DiffServ, Quality of service, Traffic engineering, Distributed call admission
control

July, 2010

Link To Online Resource: 

http://www.ijicic.org/contents.htm

Attachment: 

08-1256-1.pdf

 

 

 

Year: 
2010
Month/Season: 
July
Type: 
Journal Papers

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