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Published Articles >> Table of Contents >> Abstract
33rd Annual Simulation Symposium
p. 177
A Methodology Centered on Modularization of QoS Constraints for the Development and Performance Evaluation of Multimedia Systems
Giancarlo Fortino, Università della Calabria
Libero Nigro, Università della Calabria
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DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/SIMSYM.2000.844914
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This paper proposes a methodology for the development of multimedia systems. It is based on a time-sensitive, reflective actor framework that centers on lightweight actors, non-overkilling concurrency and customizable constraint-directed scheduling. A multimedia system can be visualized as a collection of media actors, i.e., autonomous, concurrent and computational processing entities, involved in multimedia sessions. QoS requirements associated to a multimedia session are incorporated in reflective actors called QoSsynchronizers that manage and enforce application-dependent QoS parameters. Timing QoS, parameters are first specified by using Time Stream Petri Nets and then translated in terms of a QoSsynchronizer. In order to support QoS constraints analysis and validation, media actors and QoSsynchronizers are prototyped under simulation by exploiting a flexibility of the adopted framework to operate transparently under virtual or real time. Thus a seamless transition from the modeling to the implementation stages can be obtained. The paper describes the use of the methodology for the development of live and on-demand multimedia applications.
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 Additional Information
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Index Terms- Multimedia modeling and prototyping, Actors, QoSsynchronizers, RTP
Citation:
Giancarlo Fortino, Libero Nigro,
"A Methodology Centered on Modularization of QoS Constraints for the Development and Performance Evaluation of Multimedia Systems,"
ss,
p. 177,
33rd Annual Simulation Symposium,
2000
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