Massive multi-input multi-output (MIMO) can support high spectral efficiency with simple
linear transceivers, and is expected to provide high energy efficiency (EE). In this paper, we …

In this paper, we analyze and optimize the energy efficiency (EE) of multi-user (MU) multiple-
input and multiple-output (MIMO) in downlink multi-cell networks. We first analyze the …

The advent of simultaneous wireless information and power transfer (SWIPT) offers a
promising approach to providing cost-effective and perpetual power supplies for energy …

Large-scale distributed antenna systems with many access points (APs) that serve the users
by coherent joint transmission is being considered for 5G-and-beyond networks. The …

The current growth rate of wireless data exceeds both spectral efficiency advances and
availability of new wireless spectrum; a trend towards network densification is essential to …

Multi-user massive multiple-input-multiple-output (massive MIMO) will play a key role in
future wireless communication networks. Since spatial channel diversity is the fundamental …

A K-tier heterogeneous downlink millimeter wave (mmWave) cellular network with user-
centric small cell deployments is studied in this paper. In particular, we consider a …

Massive multi-input–multi-output (MIMO) systems are crucial to maximizing energy efficiency
(EE) and battery-saving technology. Achieving EE without sacrificing the quality of service …

As a key technology in 4G-LTE, heterogeneous networks effectively extend the coverage
and capacity of wireless networks by deploying multiple low power small base stations on …

High data rate and energy-efficient design are of paramount importance for 5G systems.
Massive MIMO can ensure both of these by extending the number of antennas at base …