First Load Priority : A Wavelength Converter Placement Scheme for Optical Networks

In this paper it is proposed a wavelength converter placement scheme called First Load Priority FLP, useful for designing and planning of optical networks with sparse-partial wavelength conversion architecture. A performance evaluation of FLP working in different scenarios is provided. Comparing to others wavelength converter placement schemes like MBPF, TOT, XC and partial wavelength conversion, FLP achieved better performance results in all scenarios studied, very close to that achieved from full-complete wavelength conversion architecture. Besides, we present the Adaptive FLP that is an extension of the FLP placement scheme. It was conceived with the aim of decreasing the number of Wavelength Converter Routers (WCRs) used by the FLP scheme. Results achieved by applying the Adaptive FLP showed a reduction of 42% (5 WCRs) in terms of WCRs required by simple FLP in the scenarios studied.

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