<研究論文>衛星通信・ISDN・インターネットによるイベント配信実験

概要

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We have held several experiments on distribution of some events with satellite communication, ISDN (Integrated Services Digital Network) and the Internet. These experiments have three kinds of features. First, we connected with two satellite communication systems UnSAT(University's Joint Study Group for Digital Satellite Communications) and SCS (Space Collaboration System) using the H.261 CODEC, and held the experiments on distribution of three events. Second, we received a distribution of a event with two kinds of links, a satellite link and an ISDN link using the H.261 CODEC, and compared the quality of distributed picture and sound. Last, we received a distribution of a event with two Internet video distribution's application by two kinds of links, the Internet and ISDN using IP protocol, and compared the quality of distributed picture and sound. In this paper we describe the outline of the systems of these distribution experiment and the way we did our experiments. The results of the questionnaire investigation for these experiments are presented and compared with each other.
東京都立航空工業高等専門学校の論文