[PDF] arxiv.org

Multi-agent Reinforcement Learning-based Joint Precoding and Phase Shift Optimization for RIS-aided Cell-Free Massive MIMO Systems

Y Zhu, E Shi, Z Liu, J Zhang, B Ai - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
Cell-free (CF) massive multiple-input multipleoutput (mMIMO) is a promising technique for
achieving high spectral efficiency (SE) using multiple distributed access points (APs) …
被引用次数：3 相关文章 所有 3 个版本

Joint Precoding and Phase Shift Design for RIS-aided Cell-Free Massive MIMO with Heterogeneous-Agent Trust Region Policy

Y Zhu, J Zhang, E Shi, Z Liu, C Yuen… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
Cell-free (CF) massive multiple-input multipleoutput (mMIMO) utilizes multiple distributed
access points (APs) to achieve high spectral efficiency (SE). However, challenging …
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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 …
被引用次数：1 相关文章
[PDF] arxiv.org

RIS-assisted cell-free massive MIMO relying on reflection pattern modulation

Z Sui, HQ Ngo, T Van Chien… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
We propose reflection pattern modulation-aided reconfigurable intelligent surface (RPM-
RIS)-assisted cell-free massive multiple-input-multiple-output (CF-mMIMO) schemes for …
被引用次数：1 相关文章 所有 5 个版本

Joint Beamforming and Phase Shift Design for RIS-Aided Cell-Free Massive MIMO Systems with Electromagnetic Interference and Imperfect CSI

S Wen, E Shi, Y Lu, J Zhang, B Ai - 2024 IEEE 99th Vehicular …, 2024 - ieeexplore.ieee.org
Reconfigurable intelligent surfaces (RISs) and cell-free (CF) massive multiple-input multiple-
output (MIMO) are two promising technologies for sixth-generation (6G) networks. This …
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[PDF] arxiv.org

Joint AP-UE Association and Precoding for SIM-Aided Cell-Free Massive MIMO Systems

E Shi, J Zhang, J An, G Zhang, Z Liu, C Yuen… - arXiv preprint arXiv …, 2024 - arxiv.org
Cell-free (CF) massive multiple-input multiple-output (mMIMO) systems are emerging as
promising alternatives to cellular networks, especially in ultra-dense environments …
被引用次数：1 相关文章
[PDF] arxiv.org

Harnessing Stacked Intelligent Metasurface for Enhanced Cell-Free Massive MIMO Systems: A Low-Power and Cost Approach

E Shi, J Zhang, Y Zhu, J An, C Yuen, B Ai - arXiv preprint arXiv …, 2024 - arxiv.org
In this paper, we explore the integration of low-power, low-cost stacked intelligent
metasurfaces (SIM) into cell-free (CF) massive multiple-input multiple-output (mMIMO) …
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[PDF] arxiv.org

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 …
被引用次数：22 相关文章 所有 5 个版本

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 …
被引用次数：2 相关文章

Spectral efficiency enhancement by hybrid pre-coding technique for reconfigurable intelligent surfaces-based massive MIMO systems under variable CSI

AH Victoria, NM Devarajan, R Saravanakumar… - Soft Computing, 2023 - Springer
In this paper, we propose a hybrid relay-reflecting intelligent surface (HR-RIS)-assisted cell-
free (CF) massive multiple-input multiple-output (mMIMO) network to achieve consistent …
被引用次数：3 相关文章