This paper is concerned with the design of improved AQM control scheme to cope with unwanted variations of characteristic parameters such as the average round-trip time, the load and link capacity without the necessity of its measurements. An appropriate robust H1 controller for timedelay systems is proposed and hence used to design a suitable AQM control scheme. A robust observer is used to estimate online the transmission window resulting in a novel output feedback stabilization scheme for AQM. The resulting control law is validated, tested and compared with other classical AQM schemes firstly through numerical NS-2 simulations and then experimentally.
A robust strategy for AQM: design and validation / Manfredi, Sabato; DI BERNARDO, Mario; Garofalo, Francesco. - STAMPA. - (2004), pp. 368-374. (Intervento presentato al convegno International Conference on Communications in Computing tenutosi a Las Vegas, USA nel giugno 2004).
A robust strategy for AQM: design and validation
MANFREDI, SABATO;DI BERNARDO, MARIO;GAROFALO, FRANCESCO
2004
Abstract
This paper is concerned with the design of improved AQM control scheme to cope with unwanted variations of characteristic parameters such as the average round-trip time, the load and link capacity without the necessity of its measurements. An appropriate robust H1 controller for timedelay systems is proposed and hence used to design a suitable AQM control scheme. A robust observer is used to estimate online the transmission window resulting in a novel output feedback stabilization scheme for AQM. The resulting control law is validated, tested and compared with other classical AQM schemes firstly through numerical NS-2 simulations and then experimentally.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
