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Congestion Control for Interactive Video-on-Demand over ATM

Summary: Congestion Control for Interactive
Video-on-Demand over ATM
An interactive video-on-demand (IVoD) system consists of a video server and a client
connected together through a high speed network. Use of interactive video-on-demand in
an educational environment is very interactive because students frequently pause, fast-
forward, skip and view frame-by-frame. Designing a network able to support interactivity and
make ecient use of bandwidth is challenging. In this paper we evaluate the suitability of a
number of congestion control schemes (based on the service categories of ATM) for carrying
interactive video on demand. We have developed analytical models to evaluate and compare the
various schemes. Data on interactive behaviour of students obtained from IVoD trails carried out
in our laboratory have been used in the models. We show that the renegotiated constant bit rate
service category has considerable potential for carrying IVoD over a high speed network, such as
the asynchronous transfer mode (ATM). We also show the use of an application layer, (such as
Winsock 2), by the server to limit congestion within the network.
# 1999 Academic Press
Philip Branch1
, Mohammed Atiquzzaman2
Network Systems Performance and Applications Group, Department of E&CS Engineering,
Monash University, Clayton, Melbourne, Victoria 3168, Australia.


Source: Atiquzzaman, Mohammed - School of Computer Science, University of Oklahoma


Collections: Computer Technologies and Information Sciences