Multiple time-delays system modeling and control for router management

Author

Ariba, Yassine ; Gouaisbaut, Frederic ; Labit, Yann

Author_Institution

LAAS, Toulouse, France

fYear

2009

fDate

23-26 Aug. 2009

Firstpage

3557

Lastpage

3562

Abstract

This paper investigates the overload problem of a single congested router in TCP (Transmission Control Protocol) networks. To cope with the congestion phenomenon, we design a feedback control based on a multiple time-delays model of the set TCP/AQM (Active Queue Management). Indeed, using robust control tools, especially in the quadratic separation framework, the TCP/AQM model is rewritten as an interconnected system and a structured state feedback is constructed to stabilize the network variables. Finally, we illustrate the proposed methodology with a numerical example and simulations using NS-2 [1] simulator.

Keywords

control system synthesis; digital simulation; interconnected systems; queueing theory; robust control; state feedback; telecommunication congestion control; telecommunication network routing; transport protocols; /AQM; NS-2 simulator; TCP network; Transmission Control Protocol network; active queue management; feedback control design; interconnected system; multiple time-delays system modeling; network variable stabilization; quadratic separation framework; robust control tools; single congested router management; structured state feedback; Delay effects; Delays; Interconnected systems; Mathematical model; Quality of service; Stability analysis; State feedback;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Conference (ECC), 2009 European

Conference_Location

Budapest

Print_ISBN

978-3-9524173-9-3

Type

conf

Filename

7074951