An Efficient Periodic Broadcast Technique for Digital VideoLibraries

  • Authors:

  • Kien A. Hua;Simon Sheu

  • Affiliations:

  • School of Computer Science, University of Central Florida, Orlando, FL 32816. kienhua@cs.ucf.edu;School of Computer Science, University of Central Florida, Orlando, FL 32816. sheu@cs.ucf.edu

  • Venue:
  • Multimedia Tools and Applications
  • Year:
  • 2000

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Abstract

We investigate a novel multicast technique, called SkyscraperBroadcasting (SB), for digital-video-library applications. Wediscuss the data fragmentation technique, the broadcasting strategy,and the client design. We also show the correctness of ourtechnique, and derive mathematical equations to analyze its storagerequirement. To assess its performance, we compare it to the latestdesigns known as Pyramid Broadcasting (PB) andPermutation-Based Pyramid Broadcasting (PPB). Our study indicatesthat PB offers excellent access latency. However, it requires verylarge storage space and disk bandwidth at the receiving end. PPB isable to address these problems. However, this is accomplished at theexpense of longer access latency and more complex synchronization.With SB, we are able to achieve the low latency of PB while usingonly 20% of the buffer space required by PPB.