Congestion avoidance and control
SIGCOMM '88 Symposium proceedings on Communications architectures and protocols
Random early detection gateways for congestion avoidance
IEEE/ACM Transactions on Networking (TON)
Fluid-based analysis of a network of AQM routers supporting TCP flows with an application to RED
Proceedings of the conference on Applications, Technologies, Architectures, and Protocols for Computer Communication
IEEE/ACM Transactions on Networking (TON)
Modern Control System Theory and Design
Modern Control System Theory and Design
The BLUE active queue management algorithms
IEEE/ACM Transactions on Networking (TON)
Congestion control for high bandwidth-delay product networks
Proceedings of the 2002 conference on Applications, technologies, architectures, and protocols for computer communications
A self-tuning structure for adaptation in TCP/AQM networks
SIGMETRICS '03 Proceedings of the 2003 ACM SIGMETRICS international conference on Measurement and modeling of computer systems
Variable Structure Control in Active Queue Management for TCP with ECN
ISCC '03 Proceedings of the Eighth IEEE International Symposium on Computers and Communications
The effects of active queue management on web performance
Proceedings of the 2003 conference on Applications, technologies, architectures, and protocols for computer communications
A duality model of TCP and queue management algorithms
IEEE/ACM Transactions on Networking (TON)
End-to-end congestion control schemes: utility functions, random losses and ECN marks
IEEE/ACM Transactions on Networking (TON)
Analysis and design of the virtual rate control algorithm for stabilizing queues in TCP networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
An adaptive virtual queue (AVQ) algorithm for active queue management
IEEE/ACM Transactions on Networking (TON)
An analysis of internet content delivery systems
OSDI '02 Proceedings of the 5th symposium on Operating systems design and implementationCopyright restrictions prevent ACM from being able to make the PDFs for this conference available for downloading
IEEE Network: The Magazine of Global Internetworking
GA-based PID active queue management control design for a class of TCP communication networks
Expert Systems with Applications: An International Journal
Revisiting adaptive RED: beyond AIMD algorithms
NET-COOP'07 Proceedings of the 1st EuroFGI international conference on Network control and optimization
Synthesis of PI-type congestion controller for AQM router in TCP/AQM network
LSMS/ICSEE'10 Proceedings of the 2010 international conference on Life system modeling and and intelligent computing, and 2010 international conference on Intelligent computing for sustainable energy and environment: Part I
IAPI: An intelligent adaptive PI active queue management scheme
Computer Communications
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Active queue management (AQM) mechanisms are designed to provide better support for end-to-end congestion control mechanisms of transmission control protocol (TCP) in TCP/IP networks. This paper introduces a stable queue-based adaptive proportional-integral (Q-SAPI) controller for AQM and presents an implementation. The starting points of our approach are the recently developed fluid-flow modeling and control theoretic interpretation of the TCP/AQM dynamics, and the recently developed fixed-gain proportional-integral (PI) controller for AQM. Q-SAPI aims to improve the transient performance of the fixed-gain PI controller while maintaining its steady-state performance over a wide range of uncertainties in round-trip time (RTT) and the number of active TCP flows. The robustness of Q-SAPI is studied in detail, which provides guidelines for selecting control parameters. Through extensive simulations, we demonstrate the ability of Q-SAPI in controlling queue length in both transient and steady states. Q-SAPI achieves this by adapting the controller gains according to the queue length.