Fixed and adaptive model-based controllers for active queue management

被引：0

作者：

Chait, Y ^{[1
]}

Hollot, CV ^{[1
]}

Misra, V ^{[1
]}

Oldak, S ^{[1
]}

Towsley, D ^{[1
]}

Gong, WB ^{[1
]}

机构：

[1] Univ Massachusetts, MIE, Amherst, MA 01003 USA

来源：

PROCEEDINGS OF THE 2001 AMERICAN CONTROL CONFERENCE, VOLS 1-6 | 2001年

关键词：

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper we present new model-based controllers for active queue management (AQM) supporting TCP flows. Our control design is based on linearization of a previously developed TCP model using fluid flow and stochastic differential equations. An AQM using a simple PI controller is shown to significantly outperform RED AQM. However, we show that both AQMs are unable to maintain performance as the number of flows increases. To overcome this, we introduce a special type of adaptation, the externally excited adaptive loop (EEAL) controller. In comparison to the PI AQM, the EEAL AQM exhibits faster response to flow changes, and is able to give a dynamic estimate of the number of flows.

引用

页码：2981 / 2986

页数：6

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