Beamforming techniques for massive MIMO systems in 5G: overview, classification, and trends for future research
Massive multiple-input multiple-output (MIMO) systems combined with beamforming
antenna array technologies are expected to play a key role in next-generation wireless …
antenna array technologies are expected to play a key role in next-generation wireless …
Cell-free massive MIMO versus small cells
A Cell-Free Massive MIMO (multiple-input multiple-output) system comprises a very large
number of distributed access points (APs), which simultaneously serve a much smaller …
number of distributed access points (APs), which simultaneously serve a much smaller …
On the uplink max–min SINR of cell-free massive MIMO systems
A cell-free massive multiple-input multiple-output system is considered using a max-min
approach to maximize the minimum user rate with per-user power constraints. First, an …
approach to maximize the minimum user rate with per-user power constraints. First, an …
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 …
Uplink spectral and energy efficiency of cell-free massive MIMO with optimal uniform quantization
This paper investigates the performance of limited-fronthaul cell-free massive multiple-input
multiple-output (MIMO) taking account the fronthaul quantization and imperfect channel …
multiple-output (MIMO) taking account the fronthaul quantization and imperfect channel …
Joint pilot design and uplink power allocation in multi-cell massive MIMO systems
T Van Chien, E Björnson… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
This paper considers pilot design to mitigate pilot contamination and provide good service
for everyone in multi-cell massive multiple-input-multiple-output systems. Instead of …
for everyone in multi-cell massive multiple-input-multiple-output systems. Instead of …
A survey on security issues of 5G NR: Perspective of artificial dust and artificial rain
Abstract 5G NR (New Radio) incorporates concepts of novel technologies such as spectrum
sharing, D2D communication, UDN, and massive MIMO. However, providing security and …
sharing, D2D communication, UDN, and massive MIMO. However, providing security and …
Location-aided pilot contamination avoidance for massive MIMO systems
LS Muppirisetty, T Charalambous… - IEEE Transactions …, 2018 - ieeexplore.ieee.org
Pilot contamination, defined as the interference during the channel estimation process due
to reusing the same pilot sequences in neighboring cells, can severely degrade the …
to reusing the same pilot sequences in neighboring cells, can severely degrade the …
Enhanced max-min SINR for uplink cell-free massive MIMO systems
In this paper, we consider the max-min signal-to-interference plus noise ratio (SINR)
problem for the uplink transmission of a cell-free Massive multiple-input multiple-output …
problem for the uplink transmission of a cell-free Massive multiple-input multiple-output …
[HTML][HTML] An effective algorithm in uplink massive MIMO systems for pilot decontamination
The mobile Internet business is rapidly developing, leading to a demand for higher data
service rates. To address this, massive Multiple-Input Multiple-Output (MIMO) technology …
service rates. To address this, massive Multiple-Input Multiple-Output (MIMO) technology …