Evaluating Streaming Rate Controllers: A Support Tool

Authors:
Cristian Koliver;Jean-Marie Farines;Barbara Busse;Hermann Meer
Affiliations:
University of Caxias do Sul, Caxias do Sul, Brazil CP 1352;Federal University of Santa Catarina, Florianopolis, Brazil CP 476;University of Passau, Passau, Germany 94032;University of Passau, Passau, Germany 94032
Venue:
MMM '09 Proceedings of the 15th International Multimedia Modeling Conference on Advances in Multimedia Modeling
Year:
2009

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Abstract

The Internet has been experiencing a large growth of themultimedia traffic of applications performing over an RTP stackimplemented on top of UDP/IP. Since UDP does not offer a congestioncontrol mechanism (unlikely TCP), studies on the rate controlschemes have been increasingly done. Usually, new proposes areevaluated, by simulation, in terms of criteria such as fairnesstowards competing TCP connections and packet losses. However,results related to other performance aspects − qualityachieved, overhead introduced by the control, and actual throughputafter stream adaptation − are difficult to obtain bysimulation. In order to provide actual results about thesecriteria, we developed a comprehensive rate controlled videodelivery tool for testing RTP-based controllers. The tool allows toeasily incorporate new control schemes. In this paper, we describethe tool and the results achieved by using a LDA+ basedcontroller.