Multiple access in cell-free networks: Outage performance, dynamic clustering, and deep reinforcement learning-based design

Y Al-Eryani, M Akrout, E Hossain - IEEE Journal on Selected …, 2020 - ieeexplore.ieee.org
In future cell-free (or cell-less) wireless networks, a large number of devices in a
geographical area will be served simultaneously in non-orthogonal multiple access …

Distributed beamforming techniques for cell-free wireless networks using deep reinforcement learning

F Fredj, Y Al-Eryani, S Maghsudi… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
In a cell-free network, a large number of mobile devices are served simultaneously by
several base stations (BSs)/access points (APs) using the same time/frequency resources …

Clustered cell-free multi-user multiple-antenna systems with rate-splitting: Precoder design and power allocation

AR Flores, RC De Lamare… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
In this paper, we address two crucial challenges in the design of cell-free (CF) systems:
degradation in the performance of CF systems by imperfect channel state information at the …

Rate-splitting multiple access for overloaded cellular internet of things

Y Mao, E Piovano, B Clerckx - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
In the near future, it is envisioned that cellular networks will have to cope with extensive
internet of things (IoT) devices. Therefore, a required feature of cellular IoT will be the …

Power allocation in multi-user cellular networks: Deep reinforcement learning approaches

F Meng, P Chen, L Wu, J Cheng - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
The model-based power allocation has been investigated for decades, but this approach
requires mathematical models to be analytically tractable and it has high computational …

Power allocation in multi-user cellular networks with deep Q learning approach

F Meng, P Chen, L Wu - ICC 2019-2019 IEEE International …, 2019 - ieeexplore.ieee.org
The model-driven power allocation (PA) algorithms in the wireless cellular networks with
interfering multiple-access channel (IMAC) have been investigated for decades. Nowadays …

Reconfigurable intelligent surface empowered downlink non-orthogonal multiple access

M Fu, Y Zhou, Y Shi, KB Letaief - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Power-domain non-orthogonal multiple access (NOMA) has become a promising
technology to exploit the new dimension of the power domain to enhance the spectral …

An uplink capacity analysis of the distributed antenna system (DAS): From cellular DAS to DAS with virtual cells

L Dai - IEEE Transactions on Wireless Communications, 2014 - ieeexplore.ieee.org
Performance of cellular networks is severely limited by intense inter-cell interference due to
aggressive frequency reuse among cells. How to characterize the dependency of inter-cell …

Rate splitting multiple access in C-RAN: A scalable and robust design

AA Ahmad, Y Mao, A Sezgin… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Cloud radio access networks (C-RAN) enable a network platform for beyond the fifth
generation of communication networks (B5G), which incorporates the advances in cloud …

RIS enhanced massive non-orthogonal multiple access networks: Deployment and passive beamforming design

X Liu, Y Liu, Y Chen, HV Poor - IEEE Journal on Selected Areas …, 2020 - ieeexplore.ieee.org
A novel framework is proposed for the deployment and passive beamforming design of a
reconfigurable intelligent surface (RIS) with the aid of non-orthogonal multiple access …