Time-efficient optimal wavelength assignment in optical WDM networks with conversion capability

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In wavelength-routed optical networks (WRONs), a wavelength assignment algorithm which can optimally utilize wavelength converters is strongly desired. In this letter, for the first time, we propose a novel graph constructed with groups of available wavelengths, called lambda-runs, to obtain the least-conversion lightpaths easily by applying the shortest-path routing Dijkstra's algorithm. Simulations show that our algorithm is much more scalable than an existing optimal algorithm, and significantly improves the blocking performance, compared to modified first-fit algorithm.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2006-03
Language
English
Article Type
Article
Citation

IEEE COMMUNICATIONS LETTERS, v.10, pp.198 - 200

ISSN
1089-7798
DOI
10.1109/LCOMM.2006.03014
URI
http://hdl.handle.net/10203/90959
Appears in Collection
EE-Journal Papers(저널논문)
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