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SingBroad: A scheduling scheme for broadcasting continuous multimedia data over a single channel. (English) Zbl 1188.68082
Summary: This work proposes a SingBroad protocol for broadcasting continuous multimedia data over a single channel. Let us consider a channel with bandwidth a·b Mbps where a is a positive integer and b Mbps 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.
MSC:
68M20Performance evaluation of computer systems; queueing; scheduling
68M10Network design and communication of computer systems