Key technologies to accelerate the ICT Green evolution -- An operator's point of view

TL;DR

This paper discusses technological advancements and strategies from a European telecom operator's perspective to accelerate the green evolution of ICT networks, focusing on energy efficiency and sustainability in optical and wireless networks.

Contribution

It provides a comprehensive survey of ICT green network evolution, highlighting key technological developments and operator insights after 15 years of experience.

Findings

Technological advancements can significantly reduce energy consumption in ICT networks.

Green orchestration plays a crucial role in optimizing network energy efficiency.

Hardware and software improvements are essential for sustainable network evolution.

Abstract

The exponential growth in networks' traffic accompanied by the multiplication of new services like those promised by the 5G led to a huge increase in the infrastructures' energy consumption. All over the world, many telecom operators are facing the problem of energy consumption and Green networking since many years and they all convey today that it turned from sustainable development initiative to an OPEX issue. Therefore, the challenge to make the ICT sector more energy-efficient and environment-friendly has become a fundamental objective not only to green networks but also in the domain of green services that enable the ICT sectors to help other industrial sector to clean their own energy consumption. The present paper is a point of view of a European telecom operator regarding green networking. We address some technological advancements that would enable to accelerate this ICT green evolution after more than 15 years of field experience and international collaborative research projects. Basically, the paper is a global survey of the evolution of the ICT industry in green networks including optical and wireless networks and from hardware improvement to the software era as well as the green orchestration.