Active Congestion Control Using Active Router`s Feedback Mechanism 


Vol. 9,  No. 4, pp. 513-522, Aug.  2002
10.3745/KIPSTC.2002.9.4.513


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  Abstract

Current end-to-end congestion control depends only on the information of end points (using three duplicate ACK packets) and generally responds slowly to the network congestion. This mechanism can't avoid TCP global synchronization which TCP congestion window size is fluctuated during congestion occurred and if RTT (Round Trip Time) is increased, three duplicate ACK packets is not a correct congestion signal because congestion maybe already disappeared and the host may send more packets until receive the three duplicate ACK packets. Recently there is increasing interest in solving end-to-end congestion control using active network frameworks to improve the performance of TCP protocols. ACC (Active congestion control) is a variation of TCP-based congestion control with queue management In addition traffic modifications may begin at the congested router (active router) so that ACC will respond more quickly to congestion than TCP variants. The advantage of this method is that the host uses the information provided by the active routers as well as the end points in order to relieve congestion and improve throughput. In this paper, we model enhanced ACC, provide its algorithm which control the congestion by using information in core networks and communications between active routers, and finally demonstrate enhanced performance by simulation.

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[IEEE Style]

K. H. Choi, K. S. Jang, H. J. Shin, D. R. Shin, "Active Congestion Control Using Active Router`s Feedback Mechanism," The KIPS Transactions:PartC, vol. 9, no. 4, pp. 513-522, 2002. DOI: 10.3745/KIPSTC.2002.9.4.513.

[ACM Style]

Ki Hyun Choi, Kyung Soo Jang, Ho Jin Shin, and Dong Ryeol Shin. 2002. Active Congestion Control Using Active Router`s Feedback Mechanism. The KIPS Transactions:PartC, 9, 4, (2002), 513-522. DOI: 10.3745/KIPSTC.2002.9.4.513.

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