Shared per Wavelength Optical Packet Switch Dimensioning by a Classical Occupancy Problem Solution

A new architecture is proposed for a WDM Optical Packet Switch which allows an easier realization than classical shared per node architecture by introducing a new sharing per wavelength strategy. This sharing strategy is naturally driven by the use of FixedInput/Tunable-Output Wavelength Converters. An upper bound for the Packet Loss Probability is found by implementing a classical occupancy problem solution in order to accurately dimension the switch in term of wavelength converters (WCs). The tightness of the upper bound is demonstrated by simulation.