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A Low-Cost Delay-Constrained Routing and Wavelength Assignment Algorithm in WDM Networks with Sparse Wavelength Conversions

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5 Author(s)
Qiwu Wu ; Dept. of Commun. Eng., Univ. of Sci. & Technol. Beijing, Beijing, China ; Xianwei Zhou ; Jianping Wang ; Zhizhong Yin
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In this paper, we propose a colored multigraph model for the temporarily available wavelengths. Based on this colored multigraph model, a low-cost delay-constrained routing algorithm is proposed by applying the K-shortest-path strategy. The proposed algorithm has the following advantages: (1) finish routing and wavelength assignment in one step; (2) the total cost of lightpath is low; (3) the delay from the source node to the destination node is bounded. Simulation results show that the proposed algorithm works well and achieves satisfactory blocking probability.

Published in:
Photonics and Optoelectronics, 2009. SOPO 2009. Symposium on

Date of Conference: 14-16 Aug. 2009

Page(s):
1 - 4
Print ISBN:
978-1-4244-4412-0
INSPEC Accession Number:
10866573
Conference Location :
Wuhan
Digital Object Identifier :
10.1109/SOPO.2009.5230198
Product Type:
Conference Publications

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