Cost Evaluation of Optical Packet Switches Equipped With Limited-Range and Full-Range Wavelength Converters for Contention Resolution1
نویسندگان
چکیده
1 This work has been supported by the European Commission through the Network of Excellence e-Photon/ONE+. AbstractAn architecture is proposed for a Wavelength Division Multiplexed (WDM) optical packet switch equipped with both limited range wavelength converters (LRWCs) and shared full range wavelength converters (FRWCs). The FRWCs are used to overcome the performance degradation in terms of Packet Loss Probability due to the use of LRWCs only. A probabilistic model is proposed to dimension the number of shared FRWCs so that the same Packet Loss Probability of a switch equipped with only shared FRWCs is guaranteed. After introducing a cost model of the converters depending on the range conversion, we show that the architecture may allow a conversion cost saving in the order of 90%.
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Performance evaluation of optical packet switches equipped with heterogeneous wavelength converters.
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