Title
Proportional Delay Differentiation Provision By Bandwidth Adaptation Of Class-Based Queue Scheduling
Abstract
Supporting quality of service (QoS) over the Internet is a very important issue and many mechanisms have already been devised or are under way towards achieving this goal. One of the most important approaches is the so-called Differentiated Services (DiffServ) architecture, which provides a scalable mechanism for QoS support in a TCP/IP network. The main concept underlying DiffServ is the aggregation of traffic flows at an ingress (or egress) point of a network and the marking of the IP packets of each traffic flow according to several classification criteria. Diffserv is classified under two taxonomies: the absolute and the relative. In absolute DiffServ architecture, an admission control scheme is utilized to provide QoS as absolute bounds of specific QoS parameters. The relative DiffServ model offers also QoS guarantees per class but in reference to the guarantees given to the other classes defined. In this paper, relative proportional delay differentiation is achieved based on class-based queueing (CBQ) scheduler. Specifically, the service rates allocated to the classes of a CBQ scheduler are frequently adjusted in order to obtain relative delay spacing among them. The model presented can also be exploited in order to meet absolute delay constraints in conj. unction With relative delay differentiation provision. Simulation experiments verify that our model can attain relative as well as absolute delay differentiation provided that the preconditions posed are satisfied. Copyright (C) 2004 John Wiley Sons, Ltd.
Year
DOI
Venue
2004
10.1002/dac.675
INTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS
Keywords
Field
DocType
quality of service, differentiated services, proportional relative differentiation, scheduling, class-based queueing
Differentiated services,Admission control,Computer science,Scheduling (computing),Queue,Network packet,Computer network,Quality of service,Real-time computing,Queueing theory,Class-based queueing
Journal
Volume
Issue
ISSN
17
7
1074-5351
Citations 
PageRank 
References 
6
0.58
10
Authors
5
Name
Order
Citations
PageRank
Angelos Michalas18519.48
Malamati D. Louta213117.84
Paraskevi Fafali360.92
George T. Karetsos47217.63
Vassilios Loumos581.02