Nonlinear output feedback control of TCP/AQM networks

Author

Fan, Yi ; Jiang, Zhong-Ping ; Panwar, Shivendra ; Zhang, Hao

Author_Institution

Electr. & Comput. Eng. Dept., Polytech. Univ. Brooklyn, NY, USA

fYear

2005

fDate

23-26 May 2005

Firstpage

2072

Abstract

An output-feedback active queue management (AQM) scheme is presented for asymptotically stabilizing a class of TCP networks at a desired operating point. In order to design an AQM controller with only an output (queue size) measurement, a novel TCP window size observer is first proposed. Then, the control law is developed by applying an observer-based backstepping design technique. The amplitude limits on the control input is addressed, namely, packet dropping or marking ratio must fall between 0 and 1. An estimation of the domain of attractiveness is given with a Lyapunov level set.

Keywords

Lyapunov methods; asymptotic stability; nonlinear control systems; observers; queueing theory; state feedback; telecommunication congestion control; transport protocols; AQM controller; Lyapunov level set; TCP window size observer; TCP/AQM networks; congestion control; network asymptotic stability; nonlinear output feedback control; observer-based backstepping design technique; output-feedback active queue management; packet dropping; packet marking ratio; persistent excitation; queue size measurement; Output feedback; AQM; Congestion control; Output feedback; Persistent excitation; TCP;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on

Print_ISBN

0-7803-8834-8

Type

conf

DOI

10.1109/ISCAS.2005.1465026

Filename

1465026