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 …

Currently, the need for “greener” telecommunication networks is stimulating research efforts
to find new solutions to cope with power consumption and sustainability issues. Exploiting …

A cloud computing paradigm enables users to access services, applications, and
infrastructure resources by using thin clients anywhere and at any time. In this paradigm …

The ever-increasing Internet traffic demand introduces new challenges for
telecommunications carriers. Telecom networks will have to be upgraded to cope with the …

With the development of IP networks and intelligent optical switch networks, the backbone
network tends to be a multi-granularity transport one. In a multi-granularity transport network …

Energy consumption and the concomitant Green House Gases (GHG) emissions of network
infrastructures are becoming major issues in the Information and Communication Society …

Energy consumption in optical backbone networks is increasing due to two main reasons:(i)
the exponential growth of bandwidth demands, and (ii) the increase in availability …

The role of the ICT sector in our daily life is causing a significant growth of the power
consumed by the network equipment. In this context, transparent WDM networks represent a …

In this paper we propose energy efficient design and operation of infrastructures
incorporating integrated optical network and IT resources. For the first time we quantify …

Although the information and communication technology (ICT) industry accounted for only 2
percent of global greenhouse gas emissions in 2007, the explosive increase in data traffic …