On the impact of optimized guard-band assignment for superchannels in flexible-grid optical networks
… When considering superchannels, we study the case in which all of them are assigned
guard-bands (fixed guard-band) and the case where guard-bands are selectively assigned
to the superchannels that will require less 3R as a result (optimized guard-band). Naturally,
all carriers in a superchannel must be spectrally adjacent whereas in single channel mode
they do not. However, a demand can also be partitioned into multiple … Given the influence
of regeneration on the cost of the DWDM layer, the objective of this work is to optimize the …
guard-bands (fixed guard-band) and the case where guard-bands are selectively assigned
to the superchannels that will require less 3R as a result (optimized guard-band). Naturally,
all carriers in a superchannel must be spectrally adjacent whereas in single channel mode
they do not. However, a demand can also be partitioned into multiple … Given the influence
of regeneration on the cost of the DWDM layer, the objective of this work is to optimize the …
Abstract
We present a planning method to find the best compromise between spectral efficiency and 3R regenerator requirements by optimizing the assignment of guard-bands in the deployment of Nx100G superchannels.
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