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Published February 10, 2003 | Submitted
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Design of AQM in Supporting TCP Based on the Well-Known AIMD Model

Abstract

In this paper, we investigate how to design AQM with a low-pass filter (average queuing) in supporting TCP based on the well-known AIMD dynamic model. Since we formulate the AQM design problem for the given TCP as state-space models, we get three important features. First, we derive PD-type (Proportional-Derivative) AQM structure with a low-pass filter which includes P-type (Proportional) RED in terms of queue length. Second, we compensate for delays in congestion measure explicitly by adding a memory control structure that uses the previous dynamic information. Third, we obtain a stabilizing optimal gains of the proposed AQM structure by minimizing a linear quadratic cost of the transients on queue length, aggregate rate, and congestion measure. Finally, we illustrate the above theoretical results through \emph{ns} simulations for TCP Reno.

Additional Information

© 2003 California Institute of Technology.

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Created:
August 19, 2023
Modified:
October 24, 2023