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Proceedings Paper

Algorithm for realizing two-stage multiplexing in WDM network
Author(s): Yue Wang; WeiSheng Hu; Chun Jiang
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Paper Abstract

In order to reduce the complexity of the optical switching nodes at a reasonable level and increase its capacity at the same time, the concept of multi-granularity was proposed. With the utilization of multi-granularity switching, the number of ports for the optical switching matrices can be decreased. In this paper, we consider the two-stage multiplexing that includes the wavelength multiplexing and waveband multiplexing. A simple algorithm that can realize the grouping from wavelengths into wavebands efficiently is proposed. As the decreased number of the optical switching matrices' ports is determined partially by the number of the nodes passing the waveband path, the length of the waveband path is considered in this algorithm. To group as more wavelengths as possible into wavebands, all the wavelength paths will be evaluated in the algorithm as long as they have common sub-path. This algorithm is also tested in two networks with six nodes, and the saving number of the switching matrices' ports is compared with which using only the one-stage wavelength multiplexing.

Paper Details

Date Published: 3 September 2002
PDF: 5 pages
Proc. SPIE 4907, Optical Switching and Optical Interconnection II, (3 September 2002); doi: 10.1117/12.482280
Show Author Affiliations
Yue Wang, Shanghai Jiaotong Univ. (China)
WeiSheng Hu, Shanghai Jiaotong Univ. (China)
Chun Jiang, Shanghai Jiaotong Univ. (China)

Published in SPIE Proceedings Vol. 4907:
Optical Switching and Optical Interconnection II
Lih-Yuan Lin; Yimo Zhang; Kimio Oguchi, Editor(s)

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