Study of ARED algorithm based on the 2nd order difference equation

Authors:
Xunli Fan;Feng Zheng;Lin Guan;Jie Wang;Li Gao;Xingang Wang
Affiliations:
Northwest University, Xi'an, China;Northwest University, Xi'an, China;Loughborough University, Loughborough, UK;Loughborough University, Loughborough, UK;Northwest University, Xi'an, China;Coventry University, Coventry, U.K.
Venue:
Proceedings of the 5th International Conference on Queueing Theory and Network Applications
Year:
2010

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Abstract

This paper proposes a novel internal structure of the Adaptive Random Early Detection (ARED) algorithm through time-domain analysis using the classical control theory, which is based on the Active Queue Management (AQM) scheme. A new discrete-time controller has been developed based on the 2nd order difference equation and embedded it into the AQM algorithm. The experiments are conducted based on the NS-2 simulation platform to demonstrate the credibility of the proposed mechanism. Simulation results show that the 2nd order difference ARED (2DE-ARED) algorithm is able to keep the instantaneous queue length more stable and it has better control capability in terms of performance of both good-puts and loss rate.