標題: A QoS Optical Packet Switching System: Architectural Design and Experimental Demonstration
作者: Yuang, Maria C.
Lin, Yu-Min
Shih, Ju-Lin
Tien, Po-Lung
Chen, Jason J.
Lee, Steven S. W.
Lin, Shih-Hsuan
資訊工程學系
電機工程學系
光電工程學系
Department of Computer Science
Department of Electrical and Computer Engineering
Department of Photonics
公開日期: 1-May-2010
摘要: Optical packet switching has been considered a prominent paradigm for future WDM networks to efficiently support a multitude of applications with diverse quality of service requirements. In this article we present the architectural design and experimental demonstration of a 10 Gb/s QoS optical packet switching system (QOPSS) for WDM networks. It embodies a set of many-to-one space switches, each of which handles the switching solely for a cluster of wavelengths. With the cluster-based optical switch design, QOPSS trades off limited statistical multiplexing gains for higher system scalability. By many-to-one, multiple packets that are carried by different internal wavelengths are scheduled to switch to the same output port but receive different delays afterward. QOPSS adopts downsized feed-forward optical buffers, yielding drastic reduction in packet loss probability in an economical manner. Significantly, through using four-wave-mixing wavelength converters at the output section, QOPSS permits optical packet preemption, thus achieving effectual QoS differentiation. The article presents both simulation and experimental testbed results to demonstrate the feasibility and superior packet loss/QoS performance of the system.
URI: http://dx.doi.org/10.1109/MCOM.2010.5458365
http://hdl.handle.net/11536/5442
ISSN: 0163-6804
DOI: 10.1109/MCOM.2010.5458365
期刊: IEEE COMMUNICATIONS MAGAZINE
Volume: 48
Issue: 5
起始頁: 66
結束頁: 75
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