A multi-objective utility-based approach for service-oriented network construction
| Autor: | Wei-Tsung Su, Yen-Chieh Tseng, Yau-Hwang Kuo, Kuan-Rong Lee |
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| Rok vydání: | 2010 |
| Předmět: |
Flexibility (engineering)
Service (systems architecture) Service quality Ubiquitous computing business.industry Computer science media_common.quotation_subject Quality of service Distributed computing Set (abstract data type) Quality (business) business Function (engineering) Computer network media_common |
| Zdroj: | 2010 Second International Conference on Ubiquitous and Future Networks (ICUFN). |
| Popis: | A service-oriented network (SON) is defined as a set of networked devices which collaborate to fulfill a complex ubiquitous service (u-service). Thus, the service quality of a u-service request highly depends on the quality of the devices and the communication links of SON. The utility-based approach is typically employed to evaluate the quality of a SON. Many existing SON construction approaches adopt a generic utility function. However, a generic utility function is insufficient to reflect the QoS needs of best-effort u-services and real-time u-services because they have quite different QoS objectives. In this paper, a multi-objective utility-based SON construction approach is proposed. Specific utility functions are defined to meet the distinct QoS needs of different types of u-services in the proposed approach. The simulation results show that the proposed multi-objective approach has 2~8 and 1~4 times better than the traditional single-objective approach in service quality and real-time performance, respectively. |
| Databáze: | OpenAIRE |
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