Equation-Based Congestion Control for Unicast Applications: the Extended Version

Floyd, Sally ; Handley, Mark ; Padhye, Jitendra ; Widmer, Jörg

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URL: https://ub-madoc.bib.uni-mannheim.de/768
URN: urn:nbn:de:bsz:180-madoc-7689
Document Type: Working paper
Year of publication: 2000
The title of a journal, publication series: Technical Reports
Volume: 00-003
Place of publication: Mannheim
Publication language: English
Institution: School of Business Informatics and Mathematics > Sonstige - Fakultät für Wirtschaftsinformatik und Wirtschaftsmathematik
MADOC publication series: Veröffentlichungen der Fakultät für Mathematik und Informatik > Institut für Informatik > Technical Reports
Subject: 004 Computer science, internet
Subject headings (SWD): TCP/IP , Unicastingverfahren , Überlastkontrolle
Abstract: This paper proposes a mechanism for equation-based congestion control for unicast traffic. Most best-effort traffic in the current Internet is well-served by the dominant transport protocol TCP. However, traffic such as best-effort unicast streaming multimedia could find use for a TCP-friendly congestion control mechanism that refrains from reducing the sending rate in half in response to a single packet drop. With our mechanism, the sender explicitly adjusts its sending rate as a function of the measured rate of loss events, where a loss event consists of one or more packets dropped within a single round-trip time. We use both simulations and experiments over the Internet to explore performance. Equation-based congestion control is also a promising avenue of development for congestion control of multicast traffic, and so an additional reason for this work is to lay a sound basis for the later development of multicast congestion control.
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