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Proceedings Paper

Priority-based wavelength assignment algorithm in WDM networks
Author(s): Rongxi He; Zhizhong Zhang; Lemin Li; Sheng Wang
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Paper Abstract

In this paper, a priority-based wavelength assignment algorithm, Dynamic Threshold Method (DTM), is proposed. A set of wavelengths, Preferred Wavelength Set (PWS), is pre-allocated for each priority request. Based on the usage of wavelength in the PWS of a priority request, a threshold is dynamically calculated to decide whether the wavelengths for the higher priority request can be allocated to the lower. By using DTM, the blocking probability of the high priority request is guaranteed to be a lower degree, and at the same time performance of the low priority request is improved. So the network's average blocking probability is minimized. Simulation results of the network performance show that the proposed algorithm performs well in different dynamic traffic load situation.

Paper Details

Date Published: 17 October 2001
PDF: 6 pages
Proc. SPIE 4585, Optical Networking, (17 October 2001); doi: 10.1117/12.445174
Show Author Affiliations
Rongxi He, Univ. of Electronic Science and Technology of China (China)
Zhizhong Zhang, Univ. of Electronic Science and Technology of China (China)
Lemin Li, Univ. of Electronic Science and Technology of China (China)
Sheng Wang, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 4585:
Optical Networking
Chunming Qiao; Shizhong Xie, Editor(s)

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