DocumentCode :
2237791
Title :
Reducing electronic multiplexing in WDM rings: an evolutionary approach
Author :
Xu, Jie ; Zeng, Qingji
Author_Institution :
Center for Broadband Opt. Networking Technol., Shanghai Jiao Tong Univ., China
Volume :
2
fYear :
2001
fDate :
2001
Firstpage :
168
Abstract :
Wavelength division multiplexing (WDM) technology has been widely applied to increase the capacity of existing SDH/SONET self-healing rings. As the number of wavelengths goes up to several dozens, SDH/SONET add-drop multiplexers (ADMs) become the dominant cost factor in network deployment. Traffic grooming studies how to arrange the placement of ADMs intelligently on wavelengths so as to reduce the number of ADMs required. We address traffic grooming in SDH/SONET WDM rings featuring an evolutionary approach. By showing that traffic grooming can be formulated as standard combinatorial optimization problems, we propose hybrid genetic algorithms (GAs) for the problem. Our algorithms can be applied to traffic grooming assuming arbitrary traffic patterns. Numerical results are reported on the performance of our grooming algorithms, which demonstrate performance better than greedy heuristics proposed in literature and comparable to a simulated-annealing (SA) based heuristic
Keywords :
SONET; combinatorial mathematics; genetic algorithms; optical fibre networks; simulated annealing; synchronous digital hierarchy; telecommunication traffic; wavelength division multiplexing; SDH; SONET; WDM rings; add-drop multiplexers; combinatorial optimization; electronic multiplexing; greedy heuristics; hybrid genetic algorithms; self-healing rings; simulated annealing; traffic grooming; wavelength division multiplexing; Add-drop multiplexers; Costs; Genetic algorithms; Intelligent networks; Optical fiber networks; Protection switching; Telecommunication traffic; Traffic control; WDM networks; Wavelength division multiplexing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Info-tech and Info-net, 2001. Proceedings. ICII 2001 - Beijing. 2001 International Conferences on
Conference_Location :
Beijing
Print_ISBN :
0-7803-7010-4
Type :
conf
DOI :
10.1109/ICII.2001.983572
Filename :
983572
Link To Document :
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