A Scheduling Method for Bandwidth Reduction in Selective Contents Broadcasting

Due to the recent popularization of digital broadcasting systems, selective contents, i.e., users watch their selected contents, have attracted great attention. For example, in a quiz program, a user selects his/her answer and watches the video content corresponding to the answer. Although a server can deliver content according to users’ preferences, the necessary bandwidth to play the content continuously becomes large because the server has to broadcast several streams. However, by scheduling those streams considering the sequence in which to play them, the necessary bandwidth can be reduced. In this paper, we propose a scheduling method for bandwidth reduction in selective contents broadcasting. In our proposed method, by producing a broadcast schedule using a state transition graph, the necessary bandwidth is effectively reduced. : Broadcasting, Selective