RIS-aided cell-free massive MIMO systems for 6G: Fundamentals, system design, and applications

E Shi, J Zhang, H Du, B Ai, C Yuen… - Proceedings of the …, 2024 - ieeexplore.ieee.org
An introduction of intelligent interconnectivity for people and things has posed higher
demands and more challenges for sixth-generation (6G) networks, such as high spectral …

Uplink performance of RIS-aided cell-free massive MIMO system with electromagnetic interference

E Shi, J Zhang, DWK Ng, B Ai - IEEE Journal on Selected Areas …, 2023 - ieeexplore.ieee.org
Cell-free (CF) massive multiple-input multiple-output (MIMO) and reconfigurable intelligent
surface (RIS) are two promising technologies for realizing future beyond-fifth generation …

Two-timescale transmission design for RIS-aided cell-free massive MIMO systems

J Dai, J Ge, K Zhi, C Pan, Z Zhang… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
This paper investigates the performance of a two-timescale transmission design for uplink
reconfigurable intelligent surface (RIS)-aided cell-free massive multiple-input multiple-output …

STAR-RIS assisted cell-free massive MIMO system under spatially-correlated channels

A Papazafeiropoulos, HQ Ngo… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
This paper investigates the performance of downlink simultaneous transmitting and
reflecting reconfigurable intelligent surface (STAR-RIS)-assisted cell-free (CF) massive …

RIS-aided cell-free massive MIMO systems with channel aging

E Shi, J Zhang, J Zheng, B Ai… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
Cell-free (CF) massive multiple-input multiple-output (MIMO) and reconfigurable intelligent
surface (RIS) are two disruptive technologies for enabling the sixth-generation network. In …

Weighted Sum-Rate Maximization for Multi-STAR-RIS-Assisted Mmwave Cell-Free Networks

Y Song, S Xu, R Xu, B Ai - IEEE Transactions on Vehicular …, 2023 - ieeexplore.ieee.org
The cell-free network is regarded as an enabling technology for alleviating inter-cell
interference due to its user-centric network paradigm. Reconfigurable intelligent surfaces …

6G-Powered Efficient Resource Control through IRS-UE Association

A Alqahtani, A Taneja, J Alqahtani, N Alqahtani - Sensors, 2023 - mdpi.com
The widespread popularity of live streaming, cloud gaming, mobile video streaming, and
many real-time applications relies on high-speed data to ensure low latency and seamless …

On Scalability of FDD-Based Cell-Free Massive MIMO Framework

B Hassan, S Baig, S Aslam - Sensors, 2023 - mdpi.com
Cell-free massive multiple-input multiple-output (MIMO) systems have the potential of
providing joint services, including joint initial access, efficient clustering of access points …

Blind beamforming for RIS-aided high-speed train communication with Doppler pre-compensation

F Han, J Zheng, M You, H Xiao… - 2023 IEEE/CIC …, 2023 - ieeexplore.ieee.org
High-speed train (HST) communications with reconfigurable intelligent surface (RIS)
techniques have caused extensive research in recent years. In this paper, we study the RIS …

Performance of Multi-RIS-aided Cell-Free Massive MIMO: Do More RISs Always Help?

B Al-Nahhas, M Obeed, A Chaaban… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
Cell free (CF) massive multiple-input multiple-output (mMIMO) is a promising technology in
realizing beyond fifth generation (B5G) networks. Massive deployment of access points …