A GNN approach for cell-free massive MIMO
Beyond 5G wireless technology Cell-Free Massive MIMO (CFmMIMO) downlink relies on
carefully designed pre-coders and power control to attain uniformly high rate coverage …
carefully designed pre-coders and power control to attain uniformly high rate coverage …
Joint power and user grouping optimization in cell-free massive MIMO systems
F Guo, H Lu, Z Gu - IEEE Transactions on Wireless …, 2021 - ieeexplore.ieee.org
To relieve the stress on channel estimation and decoding complexity in cell-free massive
multiple-input multiple-output (MIMO) systems, user grouping problem is investigated in this …
multiple-input multiple-output (MIMO) systems, user grouping problem is investigated in this …
Unequally sub-connected architecture for hybrid beamforming in massive MIMO systems
A variety of hybrid analog-digital beamforming architectures have recently been proposed
for massive multiple-input multiple-output (MIMO) systems to reduce energy consumption …
for massive multiple-input multiple-output (MIMO) systems to reduce energy consumption …
Cell-free millimeter-wave massive MIMO systems with limited fronthaul capacity
G Femenias, F Riera-Palou - IEEE Access, 2019 - ieeexplore.ieee.org
Network densification, massive multiple-input multiple-output (MIMO), and millimeter-wave
(mmWave) bands have recently emerged as some of the physical layer enablers for the …
(mmWave) bands have recently emerged as some of the physical layer enablers for the …
How much does reconfigurable intelligent surface improve cell-free massive MIMO uplink with hardware impairments?
This paper investigates the uplink performance of a general cell-free massive multiple-input
multiple-output (CF-mMIMO) system, in which all access points (APs) and user equipments …
multiple-output (CF-mMIMO) system, in which all access points (APs) and user equipments …
Trajectory optimization and power allocation algorithm in MBS-assisted cell-free massive MIMO systems
J An, F Zhao - IEEE Access, 2021 - ieeexplore.ieee.org
As the mobile networks become even denser and the traffic demand is increasing
drastically, it is becoming more heterogeneous. Recently, it is intensive to investigate the …
drastically, it is becoming more heterogeneous. Recently, it is intensive to investigate the …
Matched-decision AP selection for user-centric cell-free massive MIMO networks
This work proposes a scalable access point (AP) selection framework based on a
competitive mechanism that operates in two stages. Initially, the user equipment (UE) …
competitive mechanism that operates in two stages. Initially, the user equipment (UE) …
UL-DL duality for cell-free massive MIMO with per-AP power and information constraints
We derive a novel uplink-downlink duality principle for optimal joint precoding design under
per-transmitter power and information constraints in fading channels. The information …
per-transmitter power and information constraints in fading channels. The information …
Joint power allocation and load balancing optimization for energy-efficient cell-free massive MIMO networks
T Van Chien, E Björnson… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
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 …
by coherent joint transmission is being considered for 5G-and-beyond networks. The …
Energy-efficient design for massive MIMO with hardware impairments
In this paper, an energy-efficient design for massive multiple-input multiple-output (MIMO)
systems is studied with the consideration of hardware impairments. The objective is to …
systems is studied with the consideration of hardware impairments. The objective is to …