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Table 1 Selection of the guard bands according to the spectrum usage values (EspUti) of the network for Cost239 and NSFNet topologies

From: Provision of adaptive guard band in elastic optical networks

  Cost239 NSFNet
GB = 1 EspUti ≥0.35 EspUti ≥0.49
GB = 2 0.35 > EspUti ≥0.30 0.49 > EspUti ≥0.42
GB = 3 0.30 > EspUti ≥0.25 0.42 > EspUti ≥0.35
GB = 4 0.25 > EspUti ≥0.20 0.35 > EspUti ≥0.28
GB = 5 0.20 > EspUti ≥0.15 0.28 > EspUti ≥0.21
GB = 6 0.15 > EspUti ≥0.10 0.21 > EspUti ≥0.14
GB = 7 0.10 > EspUti ≥0.05 0.14 > EspUti ≥0.07
GB = 8 EspUti <0.05 EspUti <0.07