Emerging services and applications demanding high bitrate and stringent quality of service
requirements are pushing telecom operators to upgrade their core networks based on …

This paper reviews the status of research into elastic optical networks and flexgrid,
illustrating the benefits of new flexible technologies to allow higher network capacities and …

Emerging technologies such as spectrally efficient multicarrier higher order modulation and
bandwidth variable wavelength selective switches have led to a change in the optical …

The rapid growth of traffic inside data centers caused by the increasing adoption of cloud
services necessitates a scalable and cost-efficient networking infrastructure. Space-division …

This paper introduces a novel and simplified cost model for designing and evaluating a
Central Office Rearchitected as a Datacenter (CORD). The model includes equipment and …

We present an optimization procedure that mixes advanced large-scale optimization
methods and heuristics to solve large instances (with over 1.7 million integer variables) of …

Efficient algorithms for solving the routing and spectrum assignment (RSA) problem in flex‐
grid optical networks are of paramount importance to leverage network efficiency. Exact …

Backbone networks are evolving toward elastic optical network (EON) architecture that
allows a flexible and efficient use of spectrum resources. Flexibility in EONs is also …

As long-haul network operators upgrade core optical networks to support 5G services,
research and standardization efforts for 6G have begun. Keeping in mind the ever-growing …

We present the generic Dijkstra shortest-path algorithm: an efficient algorithm for finding a
shortest path in an optical network, in both a wavelength-division multiplexed network and …