| Bibliography | 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).
University of Stuttgart : Collaborative Research Center SFB 627 (Nexus: World Models for Mobile Context-Based Systems).
english.
IEEE, September 2008.
Article in Proceedings (Conference Paper).
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| CR-Schema | C.2.0 (Computer-Communication Networks, General)
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| Abstract | 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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| Department(s) | Universität Stuttgart, Institut für Kommunikationsnetze und Rechnersysteme (IKR)
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| Project(s) | SFB-627, A1 (Universität Stuttgart, Institut für Kommunikationsnetze und Rechnersysteme (IKR))
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| Entry date | December 17, 2009 |
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