Next-Generation Multiple Access With Cell-Free Massive MIMO

M Mohammadi, Z Mobini, HQ Ngo… - Proceedings of the …, 2024 - ieeexplore.ieee.org
To meet the unprecedented mobile traffic demands of future wireless networks, a paradigm
shift from conventional cellular networks to distributed communication systems is imperative …

Uplink Performance and Beamforming Design of SIM-enhanced Cell-Free Massive MIMO Systems

E Shi, J Zhang, Y Zhu, Z Liu, J An… - 2024 IEEE VTS Asia …, 2024 - ieeexplore.ieee.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) …

Mobile Cell-Free Massive MIMO with Multi-Agent Reinforcement Learning: A Scalable Framework

Z Liu, J Zhang, Y Zhu, E Shi, B Ai - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
Cell-free massive multiple-input multiple-output (m-MIMO) offers significant advantages in
mobility scenarios, mainly due to the elimination of cell boundaries and strong macro …

Multi-Agent DRL for Distributed Codebook Design in RIS-aided Cell-Free Massive MIMO Networks

A Abdallah, A Celik, MM Mansour… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
This paper proposes an innovative approach for enhancing network capacity and coverage
by integrating cell-free massive multiple-input multiple-output (CF-mMIMO) networks with …

Joint Precoding and AP Selection for Energy Efficient RIS-aided Cell-Free Massive MIMO Using Multi-agent Reinforcement Learning

E Shi, J Zhang, Z Liu, Y Zhu, C Yuen, DWK Ng… - arXiv preprint arXiv …, 2024 - arxiv.org
Cell-free (CF) massive multiple-input multiple-output (mMIMO) and reconfigurable intelligent
surface (RIS) are two advanced transceiver technologies for realizing future sixth-generation …

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 …

The Deep Deterministic Policy Gradient Algorithm Based on RIS Technology in a Coal Mine Tunnel.

S Wang, F Wang, W Zhang… - Applied Sciences (2076 …, 2024 - search.ebscohost.com
Abstract Reconfigurable Intelligent Surface (RIS) technology relies on its reconfigurable
electromagnetic properties and offers an efficient solution for enhancing signal quality in …