R. Volner and L. Pousek (Czech Republic)
Telemedicne, CATV, network,
When designing and configuring an ATM / based broadband CATV (B-CATV), it remains difficult to guarantee the quality of service (QoS) for different service classes, while still allowing enough statistical sharing of bandwidth so that the network is efficiently utilized. These two goals are often conflicting. Guaranteeing QoS requires traffic isolation, as well as allocation of enough network resources (e.g. buffer space and bandwidth) to each call. However, statistical bandwidth sharing means the network resources should be occupied on demand, leading to less traffic isolation and minimal resource allocation. For real time applications the authors obtain maximum queuing delay and queue length, which are important in buffer design and virtual path (VP) routing.
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