Computer Science – Networking and Internet Architecture
Scientific paper
1998-09-24
Proceedings of IEEE Infocom '98, pp. 1073-1083, April 1998
Computer Science
Networking and Internet Architecture
11 pages
Scientific paper
Network architectures that can efficiently transport high quality, multicast video are rapidly becoming a basic requirement of emerging multimedia applications. The main problem complicating multicast video transport is variation in network bandwidth constraints. An attractive solution to this problem is to use an adaptive, multi-layered video encoding mechanism. In this paper, we consider two such mechanisms for the support of video multicast; one is a rate-based mechanism that relies on explicit rate congestion feedback from the network, and the other is a credit-based mechanism that relies on hop-by-hop congestion feedback. The responsiveness, bandwidth utilization, scalability and fairness of the two mechanisms are evaluated through simulations. Results suggest that while the two mechanisms exhibit performance trade-offs, both are capable of providing a high quality video service in the presence of varying bandwidth constraints.
Albuquerque Celio
Suda Tatsuya
Vickers Brett J.
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