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A Dynamic RWA Algorithm for Optical Networks with Wavelength Conversion Capacity

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3 Author(s)
Du Li ; Coll. of Inf. Sci. & Technol., Northeastern Univ., Shenyang, China ; Bi Xiao-Hong ; Wang Xiao-jing

Aimed at optical networks with wavelength conversion capacity, an algorithm for dynamic routing and wavelength assignment named WIC-RWA was proposed. Extended the layered-graph model to optical networks with limited-range wavelength conversion and limited-count wavelength converters; Designed key degree and influence weight value for links in order to allocate the network resources reasonably; At the same time reduced the blocking probability of the network and the number of wavelength converters by setting wavelength conversion cost weight value and computing the path of minimum weight value. The simulation results showed that the new algorithm can effectively reduce the blocking probability of the entire network and limit the used number of wavelength converters.

Published in:

Pervasive Computing Signal Processing and Applications (PCSPA), 2010 First International Conference on

Date of Conference:

17-19 Sept. 2010