Dynamic end-to-end QoS management middleware for distributed multimedia systems |
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Authors: | Denise J Ecklund Vera Goebel Thomas Plagemann Earl F Ecklund Jr |
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Affiliation: | (1) Department of Informatics, University of Oslo, P.O. Box 1080, Blindern, 0316, Oslo, Norway , NO |
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Abstract: | In this paper, we present a separable, reusable middleware solution that provides coordinated, end-to-end QoS management
over any type of service component, and can use existing (legacy) QoS management solutions (by using wrappers) in a distributed
multimedia system. Our middleware solution incorporates strategic and tactical QoS managers, and supports protocols and messages
between tactical managers and managed application components, and between QoS managers in the management hierarchy. Strategic
QoS managers take a global view of QoS provided by a set of application components within the manager's policy domain. Tactical
QoS managers provide local control over application components. We introduce the concept of QoS policy domains to scope the
authority of a strategic QoS manager. We describe how the management hierarchy is dynamically configured and reconfigured
based on runtime needs of the application. |
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Keywords: | : QoS – Middleware – Multimedia – Components |
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