A survey on Multi-AP coordination approaches over emerging WLANs: Future directions and open challenges
Recent advancements in wireless local area network (WLAN) technology include IEEE
802.11 be and 802.11 ay, often known as Wi-Fi 7 and WiGig, respectively. The goal of these …
802.11 be and 802.11 ay, often known as Wi-Fi 7 and WiGig, respectively. The goal of these …
Mobile cell-free massive MIMO: Challenges, solutions, and future directions
Cell-free (CF) massive multiple-input multiple-output (MIMO) systems, which exploit many
geographically distributed access points to coherently serve user equipment via spatial …
geographically distributed access points to coherently serve user equipment via spatial …
Massive synchrony in distributed antenna systems
EG Larsson - IEEE Transactions on Signal Processing, 2024 - ieeexplore.ieee.org
Distributed antennas must be phase-calibrated (phase-synchronized) for certain operations,
such as reciprocity-based joint coherent downlink beamforming, to work. We use rigorous …
such as reciprocity-based joint coherent downlink beamforming, to work. We use rigorous …
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 …
Distributed signal processing for extremely large-scale antenna array systems: State-of-the-art and future directions
Extremely large-scale antenna arrays (ELAA) play a critical role in enabling the
functionalities of next generation wireless communication systems. However, as the number …
functionalities of next generation wireless communication systems. However, as the number …
DNN-based localization from channel estimates: Feature design and experimental results
P Ferrand, A Decurninge… - GLOBECOM 2020-2020 …, 2020 - ieeexplore.ieee.org
We consider the use of deep neural networks (DNNs) in the context of channel state
information (CSI)-based localization for Massive MIMO cellular systems. We discuss the …
information (CSI)-based localization for Massive MIMO cellular systems. We discuss the …
Deep learning for UL/DL channel calibration in generic massive MIMO systems
C Huang, GC Alexandropoulos… - ICC 2019-2019 IEEE …, 2019 - ieeexplore.ieee.org
One of the fundamental challenges to realize massive Multiple-Input Multiple-Output (MIMO)
communications is the accurate acquisition of channel state information for a plurality of …
communications is the accurate acquisition of channel state information for a plurality of …
Experimental performance evaluation of cell-free massive MIMO systems using COTS RRU with OTA reciprocity calibration and phase synchronization
Y Cao, P Wang, K Zheng, X Liang, D Liu… - IEEE Journal on …, 2023 - ieeexplore.ieee.org
Downlink coherent multiuser transmission is an essential technique for cell-free massive
multiple-input multiple-output (MIMO) systems, and the availability of channel state …
multiple-input multiple-output (MIMO) systems, and the availability of channel state …
Downlink channel tracking for intelligent reflecting surface-aided FDD MIMO systems
Intelligent reflecting surfaces (IRSs) can improve the wireless link between the transmitter
and receiver by configuring the propagation environments of the system. In order to achieve …
and receiver by configuring the propagation environments of the system. In order to achieve …
Channel reciprocity calibration in TDD hybrid beamforming massive MIMO systems
X Jiang, F Kaltenberger - IEEE Journal of Selected Topics in …, 2018 - ieeexplore.ieee.org
A hybrid analog-digital (AD) beamforming structure is a very attractive solution to build low-
cost massive multiple-input multiple-output systems. Typically, these systems use a set of …
cost massive multiple-input multiple-output systems. Typically, these systems use a set of …