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giovedì, 14 dicembre 2017

Rapporti Tecnici

Dettagli rapporto tecnico
Autori:Marco Furini
Marco Roccetti
Area Scientifica:Quality of Service Networks
Multimedia Systems
Titolo:Design and Analysis of a Mechanism for supporting Interactive Video Streaming Applications over the Internet
Apparso su:TR-INF-2002-01-01-UNIPMN
Editore:Computer Science Department, UPO
Anno:2002
URL:http://www.di.unipmn.it...R-INF-2002-01-01-UNIPMN.pdf
Sommario:Video streaming applications that provide interactive features to the end-user are becoming more popular also in the Internet environment. Needless to say, interactive operations play a fundamental role in these applications and studies showed that these operations are well supported if the end-to-end delay, experienced by the application traffic, is kept lower than a pre-defined, and application dependent, threshold. Unfortunately, the best effort nature of the Internet may compromise the QoS achieved by these applications, as the presence of the network jitter may cause the overall end-to-end delay to go above the threshold. Several mechanisms have been proposed in literature to ameliorate the network jitter and they usually have the drawback of increasing the overall end-to-end delay. In this paper we suggest another approach to support interactive video streaming applications: our mechanism acts on the video QoS in order to keep the end-to-end delay within the acceptable threshold. Our mechanism has been evaluated through several simulations and results obtained show that it is well suited for supporting interactive video streaming applications over the Internet, as it ameliorates the jitter without increasing the end-to-end delay, but only slightly affecting the video QoS.