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) …

This article provides an overview on research in energy-efficient wireless networks during
the past decade and discusses its potential applications toward the fifth generation cellular …

Fractional programming (FP) refers to a family of optimization problems that involve ratio
term (s). This two-part paper explores the use of FP in the design and optimization of …

Massive multiple-input multiple-output (MIMO) is one of the most promising technologies for
the next generation of wireless communication networks because it has the potential to …

After about a decade of intense research, spurred by both economic and operational
considerations, and by environmental concerns, energy efficiency has now become a key …

This monograph presents a unified framework for energy efficiency maximization in wireless
networks via fractional programming theory. The definition of energy efficiency is introduced …

This paper considers orthogonal frequency division multiple access (OFDMA) systems with
simultaneous wireless information and power transfer. We study the resource allocation …

This paper develops power control algorithms for energy efficiency (EE) maximization
(measured in bit/Joule) in wireless networks. Unlike previous related works, minimum-rate …

The characterization of the global maximum of energy efficiency (EE) problems in wireless
networks is a challenging problem due to their nonconvex nature in interference channels …

The advancements in smart power grid and the advocation of “green communications” have
inspired the wireless communication networks to harness energy from ambient …