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Proceedings Paper

On the design and performance study of 2-to-1 switching node for all-optical packet switching
Author(s): Zhizhong Zhang; Huandong Zhao; Yunlin Zhang; Qingji Zeng; Jiangtao Luo; Jianxin Wang
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Paper Abstract

This paper investigates the implementing techniques concerning 2-to-1 node receiver for all-optical packet switching. We point out that the state-of-the-art technologies introduced in the literatures are all associated with one main limitation, i.e., even if two incoming packets are directed to the different ports and thus no contention will occur, they can not be directed to the output ports simultaneously. To overcome this problem, a novel node receiver model is proposed in this paper. This work presents a solution that makes use of fiber delay-lines (FDLs) which allow multiple packets to be concurrently stored or transmitted. With a novel switch control, it is shown that this solution is very efficient to resolve contention, and overcomes the limitation existing in the current models (e.g., Quadro, M-Quadro and COD architectures). We describe and analyze the concrete scheduling of the switches. Simulation results based on bursty and non-bursty traffic scenarios demonstrate that the proposed node architecture (1) performs well in terms of performance metrics such as packet loss probability; (2) has a simple control requirement. In addition, we find that the required number of the recirculating time of the packets is minimal.

Paper Details

Date Published: 7 May 2004
PDF: 8 pages
Proc. SPIE 5281, Optical Transmission, Switching, and Subsystems, (7 May 2004); doi: 10.1117/12.522003
Show Author Affiliations
Zhizhong Zhang, Chongqing Univ. of Posts and Telecommunications (China)
Shanghai Jiaotong Univ. (China)
Huandong Zhao, Shanghai Jiaotong Univ. (China)
Yunlin Zhang, Chongqing Univ. of Posts and Telecommunications (China)
Qingji Zeng, Shanghai Jiaotong Univ. (China)
Jiangtao Luo, Shanghai Jiaotong Univ. (China)
Jianxin Wang, Shanghai Jiaotong Univ. (China)

Published in SPIE Proceedings Vol. 5281:
Optical Transmission, Switching, and Subsystems
Cedric F. Lam; Chongcheng Fan; Norbert Hanik; Kimio Oguchi, Editor(s)

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