Conference Proceedings

An accurate link model and its application to stability analysis of FAST TCP

A Tang, K Jacobssont, LLH Andrew, SH Low

Proceedings - IEEE INFOCOM | Published : 2007

Abstract

This paper presents a link model which captures the queue dynamics when congestion windows of TCP sources change. By considering both the self-clocking and the link integrator effects, the model is a generalization of existing models and is shown to be more accurate by both open loop and closed loop packet level simulations. It reduces to the known static link model when flows' round trip delays are similar, and approximates the standard integrator link model when the heterogeneity of round trip delays is significant. We then apply this model to the stability analysis of FAST TCP. It is shown that FAST TCP flows over a single link are always linearly stable regardless of delay distribution. ..

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