Fig. 9
From: Provision of adaptive guard band in elastic optical networks
![Fig. 9](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs13174-020-00126-3/MediaObjects/13174_2020_126_Fig9_HTML.png)
Study of variation of the Sigma (σ) for the topologies a Cost239 and b NSFNet
From: Provision of adaptive guard band in elastic optical networks
Study of variation of the Sigma (σ) for the topologies a Cost239 and b NSFNet