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Internet Multicast Video Delivery

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2 Author(s)
Ganjam, A. ; Comput. Sci. Dept., Carnegie Mellon Univ., Pittsburgh, PA, USA ; Hui Zhang

Internet video delivery has been motivating research in multicast routing, quality of service (QoS), and the service model of the Internet itself for the last 15 years. Multicast delivery has the potential to deliver a large amount of content that currently cannot be delivered through broadcast. IP and overlay multicast are two architectures proposed to provide multicast support. A large body of research has been done with IP multicast and QoS mechanisms for IP multicast since the late 1980s. In the past five years, overlay multicast research has gained momentum with a vision to accomplish ubiquitous multicast delivery that is efficient and scales in the dimensions of the number of groups, number of receivers, and number of senders. This work presents an overview of the issues facing both IP and overlay multicast and the approaches that researchers are taking to solve them. Many of these approaches take advantage of a rich interface, beyond a single rate video stream, between the coding and delivery mechanisms. The semantics of this interface is an important question for future research and we discuss this with insight from experience on delivery technologies.

Published in:

Proceedings of the IEEE  (Volume:93 ,  Issue: 1 )