Title: RQ-AQM: a rate and queue-based active queue management using feedback control theory

Authors: Sukant Kishoro Bisoy; Prasant Kumar Pattnaik

Addresses: Department of Computer Science and Engineering, C.V. Raman College of Engineering, Bhubaneswar, Odisha-752054, India ' School of Computer Engineering, KIIT University, Patia, Bhubaneswar, Odisha-751024, India

Abstract: This work proposes a rate and queue based active queue management (RQ-AQM) algorithm to improve the stability of the network system supporting TCP flows. Classical control theory is employed to analyse the stability of TCP/RQ-AQM system and provide systematic guidelines to select control gain parameters of the RQ-AQM. The performance of the proposed algorithm is evaluated and compared with existing algorithms using network simulator-2 (NS2). Simulation results demonstrate that RQ-AQM achieves stability with faster responsive to the dynamic network conditions. The proposed algorithm obtains better performance with respect to throughput, link utilisation, average delay and achieves fastest settling time than others.

Keywords: active queue management; AQM; control theory; feedback system; stability; settling time.

DOI: 10.1504/IJCNDS.2018.094204

International Journal of Communication Networks and Distributed Systems, 2018 Vol.21 No.2, pp.266 - 295

Received: 03 Mar 2017
Accepted: 02 Jul 2017

Published online: 22 Aug 2018 *

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