Improvement of the client-centric approach for broadcasting popular videos

Authors:
Hsiang-Fu Yu
Affiliations:
Department of Computer Science, National Taipei University of Education, Taipei, Taiwan
Venue:
Multimedia Tools and Applications
Year:
2013

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Abstract

Periodic broadcast is a cost-effective solution for large-scale distribution of popular videos. Regardless of the number of video requests, this strategy guarantees constant worst service latency to all clients. An essential periodic broadcast method is the client-centric approach (CCA), which allows clients to use smaller receiving bandwidth to download broadcast data. An enhanced version, namely CCA+, was proposed to yield a shorter waiting time. This work further improves CCA+ by leveraging client bandwidth for more efficient video broadcast. The new scheme reduces the broadcast latency by as much as 39驴% when compared to CCA+ and 78驴% when compared to CCA. We prove the applicability of this new scheme and provide an analytical evaluation to demonstrate the performance advantage, as compared with particular schemes.