|Title:||A 10G QoS-enabled optical packet-switching system: Technology and experimentation|
|Authors:||Lee, Steven S. W.|
Yuang, Maria C.
Chen, Jason J.
Department of Computer Science
Institute of Communications Engineering
Department of Photonics
|Keywords:||optical packet switching (OPS);quality of service (QoS);optical label switching (OLS);superimposed amplitude shift keying (SASK);four-wave mixing (FWM);adaptive bifurcating routing (ABR)|
|Abstract:||The paper presents the architecture and experimentation of a 10-Gb/s QoS-enabled almost-all-optical packet switching system (QOPS) for metro WDM networks. By applying cluster-based wavelength sharing and downsized single-staged optical buffers, QOPS is featured by its highly scalable and cost-effective design. In this paper, we first introduce the switch architecture, system operation, and the key techniques. We describe the in-band header/payload modulation and optical label swapping that is suitable for high-speed optical packet switching. We also present the design of the highly efficient Four-Wave Mixing wavelength converters for packet preemption. We then present an adaptive bifurcated routing (ABR) that directs same-connection packets to different switch clusters according to optimal bifurcation probabilities. Experimental and simulation results demonstrate that QOPS can achieve superior packet-loss performance, QoS differentiation, and minimize traffic blocking probability.|
|Journal:||NETWORK ARCHITECTURES, MANAGEMENT, AND APPLICATIONS IV|
|Appears in Collections:||Conferences Paper|