DocumentCode :
3041879
Title :
Transient behaviors of TCP-friendly congestion control protocols
Author :
Yang, Yang Richard ; Kim, Min Sik ; Lam, Simon S.
Author_Institution :
Dept. of Comput. Sci., Texas Univ., Austin, TX, USA
Volume :
3
fYear :
2001
fDate :
2001
Firstpage :
1716
Abstract :
We investigate the fairness, smoothness, responsiveness, and aggressiveness of TCP and three representative TCP-friendly congestion control protocols: GAIMD, TFRC, and TEAR. The properties are evaluated both analytically and via simulation by studying protocol responses to three network environment changes. The first environment change is the inherent fluctuations in a stationary network environment. Under this scenario, we consider three types of sending rate variations: smoothness, short-term fairness, and long-term fairness. For a stationary environment, we observe that smoothness and fairness are positively correlated. We derive an analytical expression for the sending rate coefficient of variation for each of the four protocols. These analytical results match well with experimental results. The other two environment changes we study are a step increase of network congestion and a step increase of available bandwidth. Protocol responses to these changes reflect their responsiveness and aggressiveness, respectively
Keywords :
Internet; correlation methods; telecommunication congestion control; transients; transport protocols; GAIMD; Internet; TCP-friendly congestion control protocols; TEAR; TFRC; aggressiveness; available bandwidth; correlation; long-term fairness; network congestion; network environment changes; protocol response; responsiveness; sending rate coefficient of variation; short-term fairness; simulation; smoothness; stationary network environment; transient behavior; Analytical models; Bandwidth; Control systems; Delay; Fluctuations; IP networks; Internet; Protocols; Streaming media; Unicast;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
INFOCOM 2001. Twentieth Annual Joint Conference of the IEEE Computer and Communications Societies. Proceedings. IEEE
Conference_Location :
Anchorage, AK
ISSN :
0743-166X
Print_ISBN :
0-7803-7016-3
Type :
conf
DOI :
10.1109/INFCOM.2001.916669
Filename :
916669
Link To Document :
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