Siu-Wah Lau

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In this paper, we consider a storage server architecture for multimedia information systems. While most other works on multimedia storage servers assume on-line disk storage 12, 11, 15, 8, 2], we consider a two-tier storage architecture with a robotic tape library as the vast near-line storage and on-line disks as the front-line storage. Magnetic tapes are(More)
One of the quality of service (QOS) factors in video-on-demand (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 les and compression technique applied, video frame sizes vary signiicantly(More)
Recent advances in computer technologies have made it feasible to provide mul-timedia services, such as news distribution and entertainment, via high bandwidth networks. The storage and retrieval of large multimedia objects (e.g., video) becomes a major design issue of the multimedia information system. While most other works on multimedia storage servers(More)
Due to recent advances in network, storage and data compression technologies, video-on-demand (VOD) service has become economically feasible. It is a challenging task to design a video storage server taht can eeciently service a large number of concurrent requests on-demand. One approach to accomplishing this task is to reduce the I/O demand to the VOD(More)
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