Cart (Loading....) | Create Account
Close category search window

Real-time application performance in differentiated services network

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Kos, A. ; Fac. of Electr. Eng., Ljubljana Univ., Slovenia ; Klepec, B. ; Tomazic, S.

The Internet traditionally provides service that is commonly characterized as a best-effort service. Many applications run very well using this service model but some new interactive applications such as telephony or video conferencing impose stringent demands to the network. We discuss a proposal for changing the architecture of IP networks in order to provide some level of service discrimination. Architecture for differentiated services (DS) and proposed mechanisms have been analyzed and discussed to a great extent in the past years. The two most known approaches are schemes for throughput sensitive traffic and schemes for delay sensitive traffic. Differentiated services are attractive because they maintain connectionless data transfer in IP networks without the need for per-flow state information in network elements and because they use simple signaling. We first outline both principles for service discrimination and then we use simulations to evaluate them. A scheme for the delay sensitive traffic is realized through strict priority queuing in network elements, while a scheme for throughput sensitive traffic is realized through pre-emptive buffer processing policy. With simulations we evaluate behavior of a differentiated network architecture for two widely used (WWW, FTP) and two emerging Internet applications (video conferencing and IP telephony) and compare them with the best-effort network. The results show that proposed schemes have great positive impact on real-time applications that are assigned "high priority". Queuing delays are reduced to great extent and packet delivery without losses in queues is possible. On the other side, the performance of elastic applications is not highly degraded

Published in:

TENCON 2001. Proceedings of IEEE Region 10 International Conference on Electrical and Electronic Technology  (Volume:1 )

Date of Conference:


Need Help?

IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.