A novel video-on-demand storage architecture for supporting constant frame rate with variable bit rate retrieval
Refereed conference paper presented and published in conference proceedings

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AbstractOne of the quality of service (QOS) factors in video-ondemand (VOD) applications is to provide high resolution quality to end users. One way to achieve this is to provide a constant display frame rate (e.g., 30 frames/sec) at the display station. However, due to the nature of video files and compression technique applied, video frame sizes vary significantly from frame to frame. Therefore, although the display frame rate is fixed, data retrieval is a variable bit rate process. Conventional VOD storage servers assume a peak rate retrieval of video files. Therefore, the number of concurrent requests to the VOD server cannot be maximized. In this paper, we consider a VOD storage server which can support a fixed frame rate at the display and at the same time, variable bit rates retrieval of compressed video files. We describe 1) video files layout strategy, 2) request scheduling algorithm, 3) buffering issues and, 4) various VCR features support such that the number of concurrent requests can be maximized.
All Author(s) ListLau S.W., Lui J.C.S.
Name of Conference5th International Workshop on Network and Operating Systems Support for Digital Audio and Video, NOSSDAV 1995
Start Date of Conference19/04/1995
End Date of Conference21/04/1995
Place of ConferenceDurham
Country/Region of ConferenceUnited States of America
Detailed descriptionPaper presented in the International Conference on Operating System Support for Digital Audio and Video
Volume Number1018
PublisherSpringer Verlag
Place of PublicationGermany
Pages294 - 305
LanguagesEnglish-United Kingdom

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