In this paper, we investigate energy-efficient power allocation for the downlink of the
massive multiple-input multiple-output (MIMO) non-orthogonal multiple access (NOMA) …

The ever-increasing communication requirement of the next generation network imposes
great challenges in the existing cellular architecture and requires energy-efficient resource …

The demand of mobile networks and quality of service have recently increased to higher
Spectral Efficiency (SE) or Energy Efficiency (EE) and massive connectivity for 5G wireless …

The motivations for deploying energy and spectral-efficient network architectures are the
high energy consumption and the need for more spectral resources in modern cellular …

This work discusses a cluster-based non-orthogonal multiple access (NOMA) structures
aiming at improving the system energy efficiency (EE) and spectral efficiency (SE) in a …

This study investigates a non-orthogonal multiple access (NOMA)-assisted cell-free massive
multiple-input multiple-output (MIMO) system, considering the impact of both individual and …

This article investigates the performance of nonorthogonal multiple access (NOMA)-based
cell-free massive multiple-input–multiple-output (mMIMO) for the Internet of Things (IoT) …

Massive multiple-input multiple-output (MIMO) and nonorthogonal multiple access (NOMA)-
based technologies are considered as essential parts in the 5G systems to fulfill the …

Non-orthogonal multiple access (NOMA) has been recently considered in millimeter-wave
(mmWave) massive MIMO systems to further enhance the spectrum efficiency. Massive …

We consider a reconfigurable intelligent surface (RIS) assisted cell-free massive multiple-
input multiple-output non-orthogonal multiple access (NOMA) system, where each access …