Joint cooperative clustering and power control for energy-efficient cell-free XL-MIMO with multi-agent reinforcement learning
In this paper, we investigate the amalgamation of cell-free (CF) and extremely large-scale
multiple-input multiple-output (XL-MIMO) technologies, referred to as a CF XL-MIMO, as a …
multiple-input multiple-output (XL-MIMO) technologies, referred to as a CF XL-MIMO, as a …
Practical RIS-aided multiuser communications with imperfect CSI: Practical model, amplitude feedback, and beamforming optimization
Reconfigurable intelligent surfaces (RIS) can dynamically reconstruct wireless environments
to enhance spectral efficiency. However, most existing studies have ignored the impact of …
to enhance spectral efficiency. However, most existing studies have ignored the impact of …
From Cells to Freedom: 6G's Evolutionary Shift with Cell-Free Massive MIMO
G Femenias, F Riera-Palou - IEEE Transactions on Mobile …, 2024 - ieeexplore.ieee.org
Cell-free massive MIMO (CF-mMIMO) is emerging as a technological pillar for future sixth
generation (6G) mobile networks, promising consistently high spectral and energy …
generation (6G) mobile networks, promising consistently high spectral and energy …
Energy Efficiency Optimization for full-duplex D2D Communications Underlaying Distributed Antenna Systems
Z Liu, Z Liao, C Li, Z Zhang, J Yu… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
In this paper, we investigate the total system energy efficiency (EE) of full-duplex (FD) device-
to-device (D2D) communications underlaying distributed antenna systems (DAS), where …
to-device (D2D) communications underlaying distributed antenna systems (DAS), where …
Superimposed Pilots for Cell-Free Massive MIMO over Spatial-Correlated Rician Fading Channels
M Xie, X Yu, K Wang, J Zhang, X Dang… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
In Cell-Free Massive multi-input multi-output (CF mMIMO), it is challenging to assign regular
pilots due to the pre-log pilot overhead on spectral efficiency (SE). This paper explores a …
pilots due to the pre-log pilot overhead on spectral efficiency (SE). This paper explores a …
Energy-Efficient Resource Allocation for Underlay Spectrum Sharing in Cell-Free Massive MIMO
ZH Shaik, S Rimalapudi, EG Larsson - IEEE Access, 2024 - ieeexplore.ieee.org
Cell-free massive multiple-input-multiple-output (CF-mMIMO) networks incorporate a cell-
free architecture with distributed antennas in a geographical area, and aim to deliver high …
free architecture with distributed antennas in a geographical area, and aim to deliver high …
Cell-free Processing for 5G Massive MIMO Deployments: Sleep Modes and User Stream Management
F Riera-Palou, G Femenias… - IEEE Transactions …, 2024 - ieeexplore.ieee.org
Cell-free massive MIMO (CF-M-MIMO) is heralded as a technological pillar for 6G mobile
networks, outperforming the classical cellular-based M-MIMO architecture of 5G by bringing …
networks, outperforming the classical cellular-based M-MIMO architecture of 5G by bringing …
Long-Term Energy-Efficient Duplex Mode Optimization for Cell-Free Massive MIMO Systems with Network-Assisted Full-Duplex
Y Li, X Sun, J Li, P Zhu, D Wang - IEEE Transactions on Green …, 2024 - ieeexplore.ieee.org
The network-assisted full-duplex (NAFD) system enables simultaneous uplink (UL) and
downlink (DL) transmission through dynamic allocation of UL and DL remote antenna units …
downlink (DL) transmission through dynamic allocation of UL and DL remote antenna units …
Two-Layer Large Scale Fading Precoding for Cell-Free Massive MIMO: Performance Analysis and Optimization
X Qiao, Y Zhang, H Zhao, L Yang… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
In this paper, a two-layer large scale fading precoding (LSFP) method is proposed in a
downlink cell-free massive multiple-input multiple-output (mMIMO) system. In the first LSFP …
downlink cell-free massive multiple-input multiple-output (mMIMO) system. In the first LSFP …
Analysis of a New Energy-Efficient Model for Future Wireless Communication Systems
Energy efficiency (EE) is currently one of the primary concerns in wireless communication
systems. In future 6G systems, achieving high energy-efficient communication with T-bit …
systems. In future 6G systems, achieving high energy-efficient communication with T-bit …