Title
Robust Active Queue Management for Wireless Networks.
Abstract
Active Queue Management (AQM) algorithms have been extensively studied in the literature in the context of wired networks. In this paper, we study AQM for wireless networks. Unlike a wired link, which is assumed to have a fixed capacity, a wireless link has a capacity that is time-varying due to fading. Thus, the controller is required to meet performance objectives in the presence of these capacity variations. We propose a robust controller design that maintains the queue length close to an operating point. We treat capacity variations as an external disturbance and design a robust controller using H control techniques. We also consider the effect of round-trip time in our model. Our method of incorporating the delay into the discretized model simplifies controller design by allowing direct use of systematic controller design methods and/or design packages. We demonstrate the robustness of the controller to changes in the load condition and in the round-trip time through ns -2 simulations.
Year
DOI
Venue
2011
10.1109/TCST.2010.2081671
IEEE Trans. Contr. Sys. Techn.
Keywords
Field
DocType
Telecommunication congestion control,Robust control,H infinity control,Wireless networks
Wireless network,Control theory,Control theory,Active queue management,Queue,Robustness (computer science),Control engineering,Queueing theory,Network congestion,Robust control,Mathematics
Journal
Volume
Issue
ISSN
19
6
1063-6536
Citations 
PageRank 
References 
10
0.59
14
Authors
4
Name
Order
Citations
PageRank
Kanchan Chavan1100.59
Ram G. Kumar2100.59
Madhu N. Belur33713.87
Abhay Karandikar421731.29