高いネットワーク使用効率を実現するIPTVマルチキャスト経路制御方式

概要

論文の詳細を見る
IPTV attracts attention as a TV delivery system. The IP multicasting is used in IPTV, such as PIM-SSM (Protocol Independent Multicast Source-Specific Multicast). In PIM-SSM, the existing multicast routes are not considered and a new joining message is forwarded along with the shortest path between a joining user and the delivery server, therefore increasing multicast routes independently from existing multicast routes. This paper pays attention to the construction method of multicast routes with which TV data is delivered. It aims at realizing a multicast routing method to create high network efficiency. The method proposed is a routing method that considers cases where the new users join and where other users leave. The simulation shows that the proposed method requires less number of links than the conventional method, so that the network efficiency of the proposed method is higher than the conventional method.
2011-04-30