Performance Analysis of WDM Optical Networks with Wavelength Usage Constraint

Performance Analysis of WDM Optical Networks with Wavelength Usage Constraint Due to power considerations, it is possible that not all wavelengths available in a fiber can be used at a given time. In this paper, an analytical model is proposed to evaluate the blocking performance of wavelength-routed optical networks with and without wavelength conversion where the usable wavelengths in a fiber is limited to a certain maximum number, referred to as wavelength usage constraint. The effect of the wavelength usage constraint is studied on ring and mesh-torus networks. It is shown that the analytical model closely approximates the simulation results. We also evaluate the performance of the first-fit wavelength assignment algorithm and compare its performance with the random wavelength assignment algorithm through simulation. It is observed that increasing the total number of wavelengths in a fiber is an attractive alternative to wavelength conversion when the number of usable wavelengths in a fiber is maintained the same. Photonic Network Communications Springer Journals

Performance Analysis of WDM Optical Networks with Wavelength Usage Constraint

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Kluwer Academic Publishers
Copyright © 2003 by Kluwer Academic Publishers
Computer Science; Computer Communication Networks; Electrical Engineering; Characterization and Evaluation of Materials
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  • Models of blocking probability in all-optical networks with and without wavelength changers
    Barry, R. A.; Humblet, P. A.

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