Elastic optical networks (EONs) have caused great interest for their flexible allocation and efficient utilization of the spectral resource. In this letter, we investigate superchannel conversion in EON. Similar with conventional wavelength conversion in wavelength division multiplexing, superchannel conversion is transparent to the signal bit rate and modulation format. What is more, superchannel...
An energy efficient spectrum allocation algorithm in bandwidth-variable optical switching networks is proposed, in which the modulation format of subcarriers is selected in a dynamic way according to the real-time traffic loading.
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