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2002

Staggered push - a linearly scalable architecture for push-based parallel video servers

9 years 9 months ago
Staggered push - a linearly scalable architecture for push-based parallel video servers
With the rapid performance improvements in low-cost PCs, it becomes increasingly practical and cost-effective to implement large-scale video-on-demand (VoD) systems around parallel PC servers. This paper proposes a novel parallel video server architecture where video data are striped across an array of autonomous servers connected by an interconnection network. To coordinate data transmissions from multiple autonomous servers to a client station, a staggered push scheduling algorithm is proposed. A system model is constructed to quantify the performance of the architecture. Unlike most studies, this work does not assume the existence of a global clock among the servers and tackles two problems arising from server asynchrony: inconsistent schedule assignment and traffic overlapping. The former problem is solved by using an admission scheduler and the latter problem is solved by an over-rate transmission scheme. Analytical results prove a remarkable property of the staggered push archite...
Jack Y. B. Lee
Added 23 Dec 2010
Updated 23 Dec 2010
Type Journal
Year 2002
Where TMM
Authors Jack Y. B. Lee
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