Designing a delay-based adaptive congestion control mechanism using control theory and system identification for TCP/IP networks

Mitsushige Morita; Hiroyuki Ohsaki; Masayuki Murata

doi:10.1117/12.473384

1 July 2002 Designing a delay-based adaptive congestion control mechanism using control theory and system identification for TCP/IP networks

Mitsushige Morita, Hiroyuki Ohsaki, Masayuki Murata

Author Affiliations +

Proceedings Volume 4865, Internet Performance and Control of Network Systems III; (2002) https://doi.org/10.1117/12.473384
Event: ITCom 2002: The Convergence of Information Technologies and Communications, 2002, Boston, MA, United States

Abstract

In the Internet, TCP (Transmission Control Protocol) has been used as an end-to-end congestion control mechanism. Of all several TCP implementations, TCP Reno is the most popular implementation. TCP Reno uses a loss-based approach since it estimates the severity of congestion by detecting packet losses in the network. On the contrary, another implementation called TCP Vegas uses a delay-based approach. The main advantage of a delay-based approach is, if it is properly designed, packet losses can be prevented by anticipating impending congestion from increasing packet delays. However, TCP Vegas was designed using not a theoretical approach but an ad hock one. In this paper, we therefore design a delay-based congestion control mechanism by utilizing the classical control theory. Our rate-based congestion control mechanism dynamically adjusts the packet transmission rate to stabilize the round-trip time for utilizing the network resources and also for preventing packet losses in the network. Presenting several simulation results in two network configurations, we quantitatively show the robustness and the effectiveness of our delay-based congestion control mechanism.

Citation Download Citation

Mitsushige Morita, Hiroyuki Ohsaki, and Masayuki Murata "Designing a delay-based adaptive congestion control mechanism using control theory and system identification for TCP/IP networks", Proc. SPIE 4865, Internet Performance and Control of Network Systems III, (1 July 2002); https://doi.org/10.1117/12.473384

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