In this paper, we provide a survey on techniques to improve the spectrum and energy
efficiency of wireless communication systems. Recognizing the fact that power amplifier (PA) …

Traditionally, energy efficiency aspects have been included in the wireless access network
design space only in the context of power control aimed at interference mitigation and for the …

This work presents an estimation of the global electricity usage that can be ascribed to
Communication Technology (CT) between 2010 and 2030. The scope is three scenarios for …

Abstract Information and Communication Technology (ICT) devices and services are
becoming more and more widespread in all aspects of human life. Following an increased …

Energy is a key enabler in achieving the Sustainable Development Goals (SDGs) as energy
plays the pivotal role in ending poverty and hunger, providing healthcare, education, and …

Small cell networks (SCNs) are envisaged as a key technology enabling the fifth-generation
(5G) wireless communication system to address the challenge of rising mobile data demand …

Nowadays energy crisis and global warming problems are hanging over everyone's head,
urging much research work on energy saving. In the ICT industry, which is becoming a major …

Large-scale distributed-antenna system (L-DAS) with very large number of distributed
antennas, possibly up to a few hundred antennas, is considered. A few major issues of the L …

There is a growing research interest in improving the energy efficiency of communication
networks. In order to assess the impact of introducing new energy efficient technologies, an …

In this paper we study cellular access networks which solely rely on renewable energy. We
consider a cellular network in which a mesh of base stations (BSs) that are powered with …