By Topic

AQM controller design for IP routers supporting TCP flows based on pole placement

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $31
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Chen, Q. ; Sch. of Inf. Technol. & Eng., Univ. of Ottawa, Ont., Canada ; Yang, O.W.W.

The simple pole placement technique in classical control theory is exploited to propose two kinds of controllers for active queue management (AQM) in IP routers: the proportional controller based on pole placement (P_PP controller) and the proportional-plus-integral controller based on pole placement (PI_PP controller). The damping ratio ξ and the undamped natural frequency ωn are appropriately chosen such that the transient response of the system is satisfied and all the poles lie in the left-half s-plane to guarantee the stability of the system. The authors verify the effectiveness of the controllers via extensive simulations using OPNET, including the case of different time-varying round-trip times (RTTs) for different connections. Simulation results show that choosing appropriate values of ξ and ωn can successfully satisfy the transient response of the system. The impact of different values of ξ and ωn on the system performance is also investigated.

Published in:

Communications, IEE Proceedings-  (Volume:151 ,  Issue: 4 )