Generalized data retrieval for pyramid-based periodic broadcasting of videos

A true video-on-demand system allows users to view any video program, at any time, and perform any VCR functions, but its per-user video delivery cost is too expensive to have commercial use. Periodic broadcasting (PB), which is a near video-on-demand technique, broadcasts videos repeatedly over bro...

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Bibliographic Details
Published in:Future generation computer systems 2004-01, Vol.20 (1), p.157-170
Main Authors: Kwon, Jin B., Yeom, Heon Y.
Format: Article
Language:English
Subjects:
Buffer management
Data placement
Video broadcasting
Video-on-demand servers
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Summary:A true video-on-demand system allows users to view any video program, at any time, and perform any VCR functions, but its per-user video delivery cost is too expensive to have commercial use. Periodic broadcasting (PB), which is a near video-on-demand technique, broadcasts videos repeatedly over broadcast channels. In this way, PB can service an unlimited number of clients simultaneously with a bounded service latency. We propose a data retrieval scheme, consisting of buffer management and data placement, for PB servers. Unlike existing schemes devised for a specific PB technique, our scheme can be adopted by general PB. Furthermore, it is devised considering variations in disk load induced by VBR-encoded videos.
ISSN:0167-739X
1872-7115
DOI:10.1016/S0167-739X(03)00151-1