https://scholars.lib.ntu.edu.tw/handle/123456789/310627
標題: | Providing service differentiation for optical-burst-switched networks | 作者: | Chi-Hong Lu Liao, Wanjiun |
公開日期: | 七月-2004 | 卷: | 22 | 期: | 7 | 起(迄)頁: | 1651-1660 | 來源出版物: | Journal of Lightwave Technology | 摘要: | This paper proposes a service differentiation scheme called preemptive wavelength reservation protocol (PWRP) to provide proportional quality of service (QoS) for optical-burst-switched (OBS) networks. In the context of service differentiation, traffic is divided into different service classes based on traffic characteristics. A service differentiation scheme then provides different degrees of resource assurance to different classes of traffic in proportion to their service classes. Unlike existing approaches, which may degrade to classless schemes or which may suffer from low wavelength utilization, the mechanism in this paper is robust and efficient and supports an incremental deployment of QoS support. A usage profile for each class is maintained at the router, and a preemptive wavelength reservation mechanism is implemented to ensure QoS. An analytical model is derived and simulations are conducted to evaluate the performance. The results show that the approach described in this paper performs better than existing mechanisms in terms of lower blocking probability and higher resource utilization, making it an excellent QoS mechanism for OBS networks. © 2004 IEEE. |
URI: | http://scholars.lib.ntu.edu.tw/handle/123456789/310627 https://www.scopus.com/inward/record.uri?eid=2-s2.0-3843138420&doi=10.1109%2fJLT.2004.831150&partnerID=40&md5=9f3fd0dcb6569b55dcabf9012a7a01bc |
ISSN: | 07338724 | DOI: | 10.1109/JLT.2004.831150 | SDG/關鍵字: | Computer simulation; Fiber optic networks; Mathematical models; Network protocols; Optical switches; Probability; Quality of service; Resource allocation; Routers; Telecommunication services; Telecommunication traffic; Optical burst switching; Preemptive wavelength reservation protocol; Service differentiation; Wavelength reservation; Optical communication |
顯示於: | 電機工程學系 |
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