Controlled Stochastic Petri Nets for Multimedia QoS Management
Hermann de Meer, Stefan Fischer · 1997
Most QoS management systems for multimedia applications just cope with technical issues of QoS guarantees. A QoS management system taking revenue issues and the possibly stochastic behavior of the environment into account seems to be superior to the existing ones. In this paper, we show how controller programs for such enhanced QoS management systems can be developed based on a new kind of Petri Nets, so-called Controlled Stochastic Petri Nets. We show how to numerically analyze such networks using a tool environment in order to obtain strategies for the QoS mangement system. 1 Introduction The design of distributed multimedia applications, such as systems for access to remote multimedia databases or teleconferencing, requires careful consideration of quality of service (QoS) issues, because the presentation quality of live media, especially video, requires relatively high utililisation of networking bandwidth and processing power in the end systems. For applications running i...