Guaranteeing Quality of Service and Maximizing System Profit based on Video Profiles for Hierarchical Video Servers

in National workshop (full text oral presentation), 國內研討會(全文口頭發表)
標題Guaranteeing Quality of Service and Maximizing System Profit based on Video Profiles for Hierarchical Video Servers
出版類型國內研討會(全文口頭發表)
出版年度2000
AuthorsSheau-Ru Tong, 童曉儒, & Y. - J. Y.
出版日期Jan 1 2000 12:0
其他編號0000
中文摘要

We propose a video caching policy for a video server based on the knowledge of video profiles,
namely, access rate, video size and bandwidth, tolerable rejection probability and rental price. The
video server, we consider, is constructed in a hierachical way where a set of high-speed disk drives
are located in the front end for caching a subset of videos and another set of high-capacity tertiary
devices are located in the back end for archieving the entire video collection. The front-end disks
are, in particular, organized by employing the adaptive coarse-grained striping (ACS) scheme
previously proposed in [10], The proposed policy can guarantee the quality of service conforming to
the video profiles as well as maximize the overall system profit. We simulate the system with various
configurations and the results affirm our effective approach.

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