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 …

A detailed survey of approaches reducing energy consumption of core networks is
presented in this paper. We consider a multilayer architecture, in which the optical layer can …

Elastic optical networks (EONs) have been receiving extensive attention because of their
inherent flexibility and the efficiency with which they allocate fiber-bandwidth. For an EON …

This paper addresses the minimum network cost problem for survivable virtual optical
network mapping in flexible bandwidth optical networks. For each virtual link, we provide …

In this paper, we investigate power-efficient directed preconfigured cycles (p-Cycles) for
asymmetric traffic protection in elastic optical networks (EONs) against single link failure …

Fast recovery and minimum utilization of resources are the two main criteria for determining
the protection scheme quality. We address the problem of providing a hybrid protection …

Due to the accelerated evolution of application services, optical network virtualization
simplifies optical-layer resource management and provides flexibility in spectrum resource …

The paper presents a novel method based on the standard tabu search (TS) approach,
dedicated to solve the routing, modulation and spectrum allocation (RMSA) problem in …

The concept of elasticity has been proposed in the design of next generation optical
networks in tackling the problem of efficient utilization of network resources and increasing …

Network function virtualization (NFV) in Elastic Optical Inter-DataCenter Networks (EO-
DCNs) enables a flexible, adaptive, effective, and economic network services deployment …