Multipath and optimal spectrum continuity based method for spectrum de-fragmentation in Pbit/s optical switching node of flexible bandwidth optical networks
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Abstract
This paper proposes a novel Routing and Spectrum Assignment (RSA) method in Pbit/s optical switching node: Multipath and Optimal Spectrum Continuity based (MOSC) method for de-fragmentation. This method mitigates spectrum fragmentation occurs in Pbit/s optical switching node of flexible bandwidth optical networks due to dynamic allocation of spectrum resources for new connections. Simulation results show that the novel strategy achieves a better spectral efficiency and a smaller blocking probability with high adaptability to the traffic rate variation.
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