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Proceedings Paper

Conference protocol evaluation: a load model to develop conference control protocols
Author(s): Dirk Trossen; Arpad Katona
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Paper Abstract

Conference applications facilitate communication and cooperation between users at different locations. Crucial for the acceptance of a conference application is the optimal mapping of well known social group behavior to widely spread distributed system within a network. Efficient standardized protocols become mandatory to enable the connectivity among systems of different vendors and to facilitate the implementation of conference applications by providing a generic group communication functionality. For the performance evaluation of group communication protocols in terms of scalability, load and latency, simulations may be used. For the evaluation of the protocol, the generated load within the simulation is crucial for the significance of the evaluation. Statements about usability are useless, if the given load is not realistic. For that, our work presents a model to generate loads, which are typical of different group communication scenarios. These scenarios are evaluated and defined in a formal load model which may be used in simulations. We also present simulation result for the comparison of the resource management of the T.120 group communication standard and an improved scheme, which was developed at our department. It is shown that using our load mode, a detailed evaluation and improvement of group communication protocols is feasible without implementing and testing in large environments.

Paper Details

Date Published: 22 January 1999
PDF: 12 pages
Proc. SPIE 3528, Multimedia Systems and Applications, (22 January 1999); doi: 10.1117/12.337419
Show Author Affiliations
Dirk Trossen, Technical Univ. of Aachen (Germany)
Arpad Katona, Technical Univ. of Aachen (Germany)

Published in SPIE Proceedings Vol. 3528:
Multimedia Systems and Applications
Andrew G. Tescher; Bhaskaran Vasudev; V. Michael Bove Jr.; Barbara Derryberry, Editor(s)

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