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Conference Paper
A Control Theoretic Approach for Designing Adaptive AQM Schemes
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- Authors
- Xidong Deng, Sungwon Yi, G. Kesidis, C.R. Das
- Issue Date
- 2003-12
- Citation
- GLOBECOM 2003, pp.2947-2951
- Language
- English
- Type
- Conference Paper
- Abstract
- In this paper, we use a control theoretic approach to develop a generic framework for analyzing various active queue management (AQM) schemes as proportional-integral-derivative (PID) controllers. Based on this PID model, we propose an adaptive control mechanism to improve the system stability and performance under changing network conditions. We then present a generic implementation of the PID controller by introducing a derivative control into a PI controller. In addition, we propose an improved Adaptive Virtual Queue (AVQ) scheme with explicit queue length control. A simulation study under a wide range of traffic conditions suggests that the proposed algorithms outperform the existing AQM schemes in achieving better system performance and stability.
- KSP Keywords
- Control mechanism, Derivative control, Generic framework, PI Controller, PID-controller, Queue Length Control, Simulation study, System performance, System stability and performance, Virtual queue, Wide range