A Review of Energy Efficiency in Telecommunication Networks

This paper presents the concept of green telecommunication networks and provides information about the power consumption within fixed line and wireless communication networks. It outlines the significance of energy efficiency in modern and future telecommunication networks and suggests directions for optimizing network performance in terms of energy demands. Numerous examples and reviews are also discussed. The aim is to introduce the reader to current green technologies and outline the necessity for energy efficiency in information and communication technology. T is a worldwide goal to reduce energy consumption and CO2 emissions. The European Union has targeted a reduction of 20% for year 2020. A part of this energy reduction scheme concerns the telecommunication industry and ICT that participates in a direct, indirect and systematic way (1). Characteristic examples are green networks, smart buildings, smart grids, Intelligent Transportation Systems (ITS), energy efficient electronics (OLEDS, photonics, nanotechnology) and the application of embedded systems towards low carbon and energy

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