A survey on resource allocation for 5G heterogeneous networks: Current research, future trends, and challenges

Y Xu, G Gui, H Gacanin, F Adachi - … Communications Surveys & …, 2021 - ieeexplore.ieee.org
In the fifth-generation (5G) mobile communication system, various service requirements of
different communication environments are expected to be satisfied. As a new evolution …

A comprehensive survey: Small cell meets massive MIMO

S Rajoria, A Trivedi, WW Godfrey - Physical communication, 2018 - Elsevier
The deluge of huge data demanding applications has imposed a challenge for next
generation cellular system to support high data rate with reduced energy consumption …

Robust secure energy-efficiency optimization in SWIPT-aided heterogeneous networks with a nonlinear energy-harvesting model

Y Xu, H Xie, C Liang, FR Yu - IEEE Internet of Things Journal, 2021 - ieeexplore.ieee.org
Secure information transmission and energy efficiency (EE) optimization are very important
for simultaneous wireless information and power transfer (SWIPT)-aided heterogeneous …

Hybrid beamforming designs for massive MIMO millimeter-wave heterogeneous systems

D Castanheira, P Lopes, A Silva, A Gameiro - IEEE Access, 2017 - ieeexplore.ieee.org
Network densification through the deployment of small cells along the coverage area of a
macro-cell, employing massive multiple input multiple output (MIMO) and millimeter-wave …

Robust resource allocation for cooperative MISO-NOMA-based heterogeneous networks

A Rezaei, P Azmi, NM Yamchi… - IEEE Transactions …, 2021 - ieeexplore.ieee.org
In this paper, we consider a cooperative multiple-input single-output (MISO) heterogeneous
communication network based on the power domain non-orthogonal multiple access (PD …

Efficient power control framework for small-cell heterogeneous networks

Q Alsafasfeh, OA Saraereh, A Ali, L Al-Tarawneh… - Sensors, 2020 - mdpi.com
Heterogeneous networks are rapidly emerging as one of the key enablers of beyond fifth-
generation (5G) wireless networks. It is gradually becoming clear to the network operators …

Energy efficiency scheme for relay node placement in heterogeneous networks

AA As'ari, NIA Apandi, NA Muhammad… - Bulletin of Electrical …, 2023 - beei.org
Relay node (RN) placement expands the network coverage and capacity and significantly
reduces the energy consumption of heterogeneous networks (HetNets). Energy efficiency is …

Achievable spectral efficiency of hybrid beamforming massive MIMO systems with quantized phase shifters, channel non-reciprocity and estimation errors

Y Chen, X Wen, Z Lu - IEEE Access, 2020 - ieeexplore.ieee.org
This paper considers a hybrid beamforming massive multiple-input multiple-output (MIMO)
system operating in time-division duplex (TDD) mode. We investigate the combined impacts …

Robust and Feasible QoS-Aware mmWave Massive MIMO Hybrid Beamforming

M Tajallifar, AR Sharafat… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Hybrid beamforming (HB) with quality-of-service (QoS) provisioning per stream in millimeter
waves is indispensable in 5G/6G networks. HB includes baseband and radio frequency (RF) …

Joint RRH activation and robust coordinated beamforming for massive MIMO heterogeneous cloud radio access networks

K Zhang, W Tan, G Xu, C Yin, W Liu, C Li - IEEE Access, 2018 - ieeexplore.ieee.org
Heterogeneous cloud radio access networks (H-CRANs), proposed to boost both spectral
and energy efficiency while reducing the signaling overhead, have been regarded as a …