Traffic in optical backbone networks is evolving rapidly in terms of type, volume, and
dynamicity following the rapid growth of cloud-based services, ongoing adoption of 5G …

This chapter reviews the basics of Dense Wavelength Division Multiplexing (DWDM) and
shows how this will be superseded by a more flexible use of the optical fibre spectrum …

Flexgrid technology has recently been presented as the most promising option for upgrading
the currently operating fixed grid optical networks and extending their capacity to be able to …

The 5th generation of mobile communication system (5G) is expected to change the
communication landscape by 2020. 5G will provide a unified platform for connecting billions …

Due to cost and service level agreement, upgrading network infrastructure is always
challenging for network operators, particularly for backbone optical networks (ONs) …

In this work, we present ElasticO++: an Elastic Optical Network Simulation Framework for
OMNeT++. A tool created to enable testing in a whole range of routing, modulation …

To cop with the exponential growth of network traffic nowadays, migration from fixed-grid to
flex-grid technology in the backbone optical networks (ONs) gains broader attention. On the …

In this special issue devoted to the memory of Prof. Fabio Neri we would like to look back at
the time of the international research projects where some of us collaborated with him. On …

Most spectrum allocation algorithms in elastic optical networks apply a greedy approach: A
new connection is allocated as long as there are enough spectrum slots to accommodate it …

We propose a Routing and Spectrum Assignment algorithm to address Spectrum
Fragmentation, and unfairness among different rated requests in Elastic Optical Networks …