DocumentCode :
1162057
Title :
Dynamic routing and wavelength assignment for limited-range wavelength conversion
Author :
Qin, Hao ; Zhang, Shi ; Liu, Zengji
Author_Institution :
Nat. Key Lab. on Integrated Services Network, Xidian Univ., Xi´´an, China
Volume :
7
Issue :
3
fYear :
2003
fDate :
3/1/2003 12:00:00 AM
Firstpage :
136
Lastpage :
138
Abstract :
We propose a dynamic routing and wavelength assignment algorithm in an all-optical network with limited-range wavelength conversions. For each randomly arrived request, the correlation of different wavelengths on different links in all possible routes is described by the wavelength weight in our algorithm. We try to assign wavelengths on each candidate route using a shortest-path algorithm based on the wavelength weight and choose the best as its route and wavelength assignment scheme. Numerical results obtained for NSFNET and a 12-node ring show that our algorithm can greatly reduce the blocking probability and the number of required conversions under uniform traffic or traffic dominated by larger hop routes.
Keywords :
optical fibre networks; optical wavelength conversion; probability; telecommunication network routing; telecommunication traffic; NSFNET; all-optical network; blocking probability reduction; dynamic routing and wavelength assignment algorithm; limited-range wavelength conversion; ring network; shortest-path algorithm; uniform traffic; wavelength correlation; wavelength routed optical network; wavelength weight; All-optical networks; Frequency conversion; Optical fiber networks; Optical frequency conversion; Optical wavelength conversion; Telecommunication traffic; Wavelength assignment; Wavelength conversion; Wavelength division multiplexing; Wavelength routing;
fLanguage :
English
Journal_Title :
Communications Letters, IEEE
Publisher :
ieee
ISSN :
1089-7798
Type :
jour
DOI :
10.1109/LCOMM.2003.809991
Filename :
1187387
Link To Document :
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