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2015 13th International Conference on Frontiers of Information Technology (FIT) (2015)
Islamabad, Pakistan
Dec. 14, 2015 to Dec. 16, 2015
ISBN: 978-1-4673-9665-3
pp: 160-165
This paper proposes a new Active Queue Management (AQM) technique, called CHOKe-RH (CHOKe with Recent Drop History), to achieve congestion control in the network and to protect TCP responsive flows from unresponsive flows. CHOKe-RH retains the good features of RED and CHOKe, such as the low processing cost, while overcomes their limitations. CHOKe-RH upholds the simplicity principle of the Internet design and does not require per-flow information for its processing. It improves the match-drop technique of CHOKe. It performs multiple comparisons which consist of two parts: i) initial comparisons, and ii) penalty for unresponsive flows. The initial number of comparisons is set to 3 and the penalty for unresponsive flows is adjusted dynamically depending on the average queue size. CHOKe-RH maintains the history of recently dropped packets by storing their flow-ids and uses this history for penalizing the aggressive unresponsive flows. The performance of CHOKe-RH is analyzed through ns2 simulations in different network scenarios and is compared with the well-known techniques like RED, CHOKe and CHOKeR. The results demonstrate that CHOKe-RH punishes the unresponsive flows very effectively and ensures better fairness among different flows.
Queueing analysis, Throughput, Information technology, Complexity theory, Inductors, Stability analysis

Z. Hussain, G. Abbas and U. Raza, "CHOKe with Recent Drop History," 2015 13th International Conference on Frontiers of Information Technology (FIT), Islamabad, Pakistan, 2015, pp. 160-165.
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