Design of Load-Adaptive Queue Management for Internet Congestion Control

Abstract

AbstractIn this paper, we propose the Proportional-Integral-Derivative (PID)-controller, which can provide proactive congestion avoidance and control using an adaptive congestion indicator and control function. The goals of PID-controller are to control congestion proactively, to stabilize the queue length around a desired level and to give smooth and low packet loss rates. An extensive simulation study suggests that PID-controller outperforms other active queue management (AQM) algorithms such as Random Early Detection (RED) 1 and Proportional-Integral (PI) controller 2 in terms of the queue length dynamics and the packet loss rates.KeywordsQueue LengthPacket Loss RateRandom Early DetectionActive Queue ManagementPacket Drop ProbabilityThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.