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Host-based service differentiation with congestion feedback
KTH, School of Electrical Engineering (EES), Communication Networks.ORCID iD: 0000-0002-3704-1338
2006 (English)In: 2006 14TH IEEE INTERNATIONAL WORKSHOP ON QUALITY OF SERVICE, PROCEEDINGS, 2006, 220-228 p.Conference paper (Refereed)
Abstract [en]

This paper investigates the possibility to differentiate services by using endpoint traffic controls, while sharing a single best-effort network. The starting point is a scheme based on a combination of probe-based admission control in the end-systems for streaming traffic and error correction to isolate different flows. There are inherent limitations in pure host-based control mechanisms and we therefore investigate the improvement that can be achieved when explicit congestion notification is used in routers. In particular we investigate the sensitivity to different active queue management mechanisms and parameter settings. Simulations show that a high ECN marking rate helps to differentiate between flows, but it is important to make sure that the chosen AQM works well for the chosen parameters. This study also shows that a main benefit of ECN is to enable the extension of the scheme to wireless environments.

Place, publisher, year, edition, pages
2006. 220-228 p.
Keyword [en]
admission control, ECN, error correction, quality of service, congestion control
National Category
URN: urn:nbn:se:kth:diva-36054DOI: 10.1109/IWQOS.2006.250472ISI: 000240904300023ScopusID: 2-s2.0-34250679620OAI: diva2:430286
14th International Workshop on Quality of Service (IWQoS 2006) New Haven, CT, JUN 19-21, 2006
QC 20110708Available from: 2011-07-08 Created: 2011-07-07 Last updated: 2013-09-09Bibliographically approved

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Karlsson, Gunnar
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Communication Networks

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