[2] | Christian Timmerer, Michael Ransburg, Ingo Kofler, Hermann Hellwagner, Pedro Souto, Maria Andrade, Pedro Carvalho, Helder Castro, Mamadou Sidibe, Ahmed Mehaoua, Li Fang, Adam Lindsay, Michael Mackay, Artur Lugmayr, Bernhard Feiten, An Integrated Management Supervisor for End-to-End Management of Heterogeneous Contents, Networks, and Terminals enabling Quality of Service, In Proceedings of the 2nd European Symposium on Mobile Media Delivery (EUMOB) (Tapio Frantti, Jyrki Huusko, eds.), ACM, New York, NY, USA, pp. 6, 2008.
[bib] [pdf] [abstract]
Abstract: End-to-end support for Quality of Service (QoS) has been broadly discussed in the literature. Many technologies have been proposed, each focusing on specific aspects for providing QoS guarantees to the end user. However, the integrated management of the end-to-end chain preserving QoS in heterogeneous environments is still a significant issue and insufficiently addressed to date. In this paper we propose an integrated management supervisor that takes into account the requirements from all stakeholders along the multimedia content delivery chain and provides an end-to-end management solution enabling QoS to the end user. This architecture and the subsystems that can be distributed along the end-to-end chain are detailed in this paper.
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[1] | Christian Timmerer, Maria Teresa Andrade, Pedro Carvalho, Davide Rogai, Giovanni Cordara, The Semantics of MPEG-21 Digital Items Revisited, In Proceedings of ACM Multimedia 2008 2nd International Workshop on the Many Faces of Multimedia Semantics (Farshad Fotouhi, William I Grosky, Peter Stanchev, eds.), ACM, New York, USA, pp. 17-23, 2008.
[bib] [doi] [pdf] [abstract]
Abstract: The MPEG-21 standard forms a comprehensive multimedia framework covering the entire multimedia distribution chain. In particular, it provides a flexible approach to represent, process, and transact complex multimedia objects which are referred to as Digital Items (DIs). DIs can be quite generic, independent of the application domain, and can encompass a diversity of media resources and metadata. This flexibility has an impact on the level of interoperability between systems and applications, since not all the functionality needs to be implemented. Furthermore, additional semantic rules may be implemented through the processing of the Digital Item which is possibly driven by proprietary metadata. This jeopardizes interoperability and consequently raises barriers to the successful achievement of augmented and transparent use of multimedia resources. In this context, we have investigated and evaluated the interoperability at the semantic level of Digital Items throughout the automated production, delivery and consumption of complex multimedia resources in heterogeneous environments. This paper describes the studies conducted, the experiments performed, and the conclusions reached towards that goal.
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