Benefits of Wavelength Conversion in Optical WDM Mesh Networks with Dynamic Routing (CROSBI ID 565731)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Lukač, Krešimir ; Lukač, Zrinka ; Tkalić, Mladen
engleski
Benefits of Wavelength Conversion in Optical WDM Mesh Networks with Dynamic Routing
This study focuses on the routing and wavelength assignment (RWA) problem in wavelength-routed optical WDM networks. We investigate the effectiveness of adaptive algorithms based on the learning automata concept applied in relatively large networks as opposed to traditional fixed alternate routing. We also study the benefits of full wavelength conversion on the resulting connection blocking of the proposed routing algorithm as compared to routing without wavelength conversion. One of the main advantages of the proposed algorithm is that full knowledge of the network state is not necessary. By simulating a mesh network we report performance results under different traffic conditions. The study shows that both approaches have similar behaviour in case of a uniform capacity distribution with or without the wavelength continuity constraint. However, if link failures appear i.e. in case of a non-uniform capacity distribution which corresponds to practical network realisations the proposed algorithm outperforms fixed alternate routing. It is especially superior if in the previous case wavelength conversion is enabled thus resulting with large blocking reductions.
WDM; RWA; wavelength conversion; learning automata
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Podaci o prilogu
117-122.
2006.
objavljeno
Podaci o matičnoj publikaciji
Proceedings of the IASTED International Conference on Parallel and Distributed Computing and Networks
Fahringer, Thomas
International Association of Science and Technology for Development (IASTED)
0-88986-570-1
Podaci o skupu
24th IASTED International Conference on Parallel and Distributed Computing and Networks
predavanje
14.02.2006-16.02.2006
Innsbruck, Austrija