A robust PID controller for active queue management framework in congested routers

摘要

This paper present the design of a PID controller based on state feedback. The parameters of our PID are computed using linear matrix inequality (LMI) technique and applied to active queue management (AQM) at router to avoid congestion. The results has been compared with other AQMs used in network like random early detection (RED) and random exponential markage (REM) in order to demonstrate the advantage of the present controller.