SingBroad: A scheduling scheme for broadcasting continuous multimedia data over a single channel

  • Authors:

  • Yu-Wei Chen;Chao-Yao Hsieh

  • Affiliations:

  • National Taipei University of Technology, Graduate Institute of Information and Logistics Management, No. 1, Sec. 3, Chung-hsiao E. Rd., Taipei 10608, Taiwan, ROC;Aletheia University, Graduate School of Mathematical Sciences, No. 32, Chen-Li Street, Tamsui, Taipei 25103, Taiwan, ROC

  • Venue:
  • Computer Networks: The International Journal of Computer and Telecommunications Networking
  • Year:
  • 2009

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Abstract

This work proposes a SingBroad protocol for broadcasting continuous multimedia data over a single channel. Let us consider a channel with bandwidth a.bMbps where a is a positive integer and bMbps is the same as the normal playback rate. The SingBroad protocol first divides a video with time length L into 2^a^-^1-1 equal-length segments and broadcasts these segments over the given single channel. The average waiting time of the SingBroad protocol is L/(2a(2^a^-^1-1)/(a-1)) and the buffer requirement is ((1+1/a).2^a^-^2-1)/(2^a^-^1-1) of a video size. In terms of the average waiting time and the maximum buffer requirement, the SingBroad method outperforms the alternative broadcasting method when utilizing the same single channel.