Quality of Service in VoD over IP
نویسنده
چکیده
VoD short for video-on-demand, is an electronic video-rental service over a computer network. VOD provides a service to users to browse and to watch any videos at any time. Using a VoD system, client will be able to request a video from anywhere and at any time. In response to a client's request, VoD systems will deliver high quality digitized video directly to client set-top boxes or workstations for viewing on a television or computer screen. VoD can be used for entertainment (ordering movies transmitted digitally), education (viewing training videos), and videoconferencing (enhancing presentations with video clips). Although VoD is being used somewhat in all these areas, it is not yet widely implemented. VoD's biggest obstacle is the lack of a network infrastructure that can handle the large amounts of data required by the video.
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