Bibliograph.
Daten | Orlov, Zigmund: Network-driven Adaptive Video Streaming in Wireless Environments.
In: Proceedings of the 19th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2008).
Universität Stuttgart : Sonderforschungsbereich SFB 627 (Nexus: Umgebungsmodelle für mobile kontextbezogene Systeme).
englisch.
IEEE, September 2008.
Artikel in Tagungsband (Konferenz-Beitrag).
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| CR-Klassif. | C.2.0 (Computer-Communication Networks, General)
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| Kurzfassung | In this paper, the concept of a network-driven adaptive video streaming is proposed and investigated in a state-of-the art HSDPA network in order to alleviate the impact of strongly time-varying quality of wireless links on video quality. We propose making adaptation decisions in a Radio Access Network (RAN) based on channel-quality information available there. This is done by a Multimedia Network Controller (MNC) that is aware of server and client capabilities and the channel quality. Upon a decision, the MNC sends a Rate Switching Request to the video server that adapts its data rate. We evaluate results with a novel PSNR/video-interruptions diagram (PVI) allowing to show and compare video quality graphically in a compact form.For the performance evaluation, we developed a comprehensive video streaming testbed around a detailed UMTS/HSDPA emulation tool.
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| Abteilung(en) | Universität Stuttgart, Institut für Kommunikationsnetze und Rechnersysteme (IKR)
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| Projekt(e) | SFB-627, A1 (Universität Stuttgart, Institut für Kommunikationsnetze und Rechnersysteme (IKR))
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| Eingabedatum | 17. Dezember 2009 |
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