A Replication Strategy for Reducing Wait Time in Video-On-Demand Systems
Multimedia Tools and Applications
Cost Analyses for VBR Video Servers
IEEE MultiMedia
Replica Striping for Multi-resolution Video Servers
IDMS/PROMS 2002 Proceedings of the Joint International Workshops on Interactive Distributed Multimedia Systems and Protocols for Multimedia Systems: Protocols and Systems for Interactive Distributed Multimedia
A QoS Negotiation Scheme for Efficient Failure Recovery in Multi-resolution Video Servers
IDMS '01 Proceedings of the 8th International Workshop on Interactive Distributed Multimedia Systems
Scalable and fault-tolerant support for variable bit-rate data in the exedra streaming server
ACM Transactions on Storage (TOS)
Arrangement of multi-dimensional scalable video data for heterogeneous clients
Information Systems
Data reorganization for scalable video service with embedded mobile devices
ACM Transactions on Embedded Computing Systems (TECS) - Special issue on embedded systems for interactive multimedia services (ES-IMS)
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We consider the placement of scalable video data on single and multiple disks for storage and real-time retrieval. For the single-disk case, we extend the principle of constant frame grouping from constant bit rate (CBR) to variable bit rate (VBR) scalable video data. When the number of admitted users exceeds the server capacity, the rate of data sent to each user is reduced to relieve the disk system overload, offering a graceful degradation in comparison with nonscalable data. We examine the qualities of video reconstructions obtained from a real disk video server and find the scalable video more visually appealing. In the VBR case, scalability is also used to improve interactivity by reducing the delay associated with using interactive functions in a predictive admission control environment. Finally, we consider the multiple disk scenario and prove that periodic interleaving results in lower system delay than striping in a video server using round-robin scheduling. We verify the results through detailed simulation of a four-disk array