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Distributed QoS compilation and runtime instantiation

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3 Author(s)
K. Nahrstedt ; Dept. of Comput. Sci., Illinois Univ., Urbana, IL, USA ; D. Wichadakul ; Dongyan Xu

The rapid growth and coexistence of different application domains, such as multimedia and electronic commerce, present a significant challenge to the provision of their quality of service (QoS). To solve this challenge, we need a unified QoS framework, which allows flexibility and reconfigurability. In this paper, we present a reconfigurable component-based QoS framework, called 2KQ, which solves the challenge by partitioning the end-to-end QoS setup process into distributed QoS compilation and runtime QoS instantiation phases for different types of applications. Entities, services and protocols of this framework, such as application-to-component translator and component-to-resources translators, achieve the distributed QoS compilation and prepare all necessary QoS structures for the end-to-end QoS setup. Other capabilities of this framework, such as a reconfigurable middleware and functional adaptation, achieve the runtime instantiation of the end-to-end QoS setup. We have implemented the first prototype of this framework and the results show a feasible overhead of the runtime service instantiation and reconfiguration for different applications and their QoS requirements

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Quality of Service, 2000. IWQOS. 2000 Eighth International Workshop on

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