In recent years, OFDM has been the focus of extensive research efforts in optical
transmission and networking, initially as a means to overcome physical impairments in …

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 …

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 …

It is known that multicast provisioning is important for supporting cloud-based applications,
and as the traffics from these applications are increasing quickly, we may rely on optical …

Elastic optical networks (EON) technology in combination with space division multiplexing
(SDM) is considered as having the potential to expand the transmission capacity of optical …

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 …

This paper proposes a novel network planning strategy to jointly allocate physical layer
resources together with the routing and spectrum assignment in transparent nonlinear …

In flex-grid optical network, routing and spectrum assignment (RSA) problem is a crucial task
for planning and operating. Due to the non-deterministic polynomial time (NP-hard) …

Elastic optical networks (EONs) have emerged as a promising solution for future high speed
networks because of their ability to efficiently manage network resources and provide better …