Distributed Combinatorial Optimization of Downlink User Assignment in mmWave Cell-free Massive MIMO Using Graph Neural Networks

B Peng, B Guo, KL Besser, L Kunz… - arXiv preprint arXiv …, 2024 - arxiv.org
Millimeter wave (mmWave) cell-free massive MIMO (CF mMIMO) is a promising solution for
future wireless communications. However, its optimization is non-trivial due to the …

Beam Allocation based on Deep Learning for Wideband mmWave Massive MIMO

P Zhang, C Qi - ICC 2022-IEEE International Conference on …, 2022 - ieeexplore.ieee.org
Beam allocation is considered for wideband multiuser mmWave massive MIMO systems. By
introducing the interference-free achievable rate, the analog precoder and the digital …

Beam selection for cell-free millimeter-wave massive MIMO systems

Q Xue, Q Li, C Dong, S Suo… - 2021 26th IEEE Asia …, 2021 - ieeexplore.ieee.org
Cell-free (CF) millimeter-wave (mmWave) Massive multiple-input multiple-output (MIMO) will
be a promising technology in the next-generation mobile communication system …

Mmwave massive MIMO: one joint beam selection combining cuckoo search and ant colony optimization

C Zhu, Q Ji, X Guo, J Zhang - EURASIP Journal on Wireless …, 2023 - Springer
In order to degrade the inter-user interference caused by the same beam selected for
different users in mmWave massive MIMO systems, this paper proposes a joint beam …

Antenna selection based on matching theory for uplink cell-free millimetre wave massive multiple input multiple output systems

A Al Ayidh, Y Sambo, S Olaosebikan, S Ansari… - Telecom, 2022 - mdpi.com
In this paper, we propose a hybrid beamforming architecture with constant phase shifters
(CPSs) for uplink cell-free millimetre-wave (mm-Wave) massive multiple-input multiple …

Access point clustering in cell-free massive MIMO using multi-agent reinforcement learning

B Banerjee, RC Elliott, WA Krzyrnień… - 2022 IEEE 33rd …, 2022 - ieeexplore.ieee.org
Conventional massive multiple-input multiple-output (MIMO) systems provide high spectral
efficiency, throughput, and energy efficiency, but suffer from high inter-cell interference and …

Reinforcement learning based antenna selection in user-centric massive MIMO

X Chai, H Gao, J Sun, X Su, T Lv… - 2020 IEEE 91st …, 2020 - ieeexplore.ieee.org
In this paper, we consider a user-centric massive multiple-input multiple-output (UC-MMIMO)
system, wherein the optimal antenna selection (AS) is very complicated, because of the …

Near-optimal beam selection for beamspace mmWave massive MIMO systems

X Gao, L Dai, Z Chen, Z Wang… - IEEE Communications …, 2016 - ieeexplore.ieee.org
The recent concept of beamspace MIMO can utilize beam selection to reduce the number of
required radio-frequency (RF) chains in mmWave massive MIMO systems without obvious …

Genetic algorithm combined with ray tracer for optimizing cell-free mmimo topology in a confined environment

K Shen, T De Pessemier, L Martens… - 2021 15th European …, 2021 - ieeexplore.ieee.org
This paper proposes a customized genetic algorithm (GA) to generate the optimal cell-free
topology for multi-user massive MIMO (mMIMO) in a confined environment. As far as we …

Cell-free millimeter-wave massive MIMO systems with limited fronthaul capacity

G Femenias, F Riera-Palou - IEEE Access, 2019 - ieeexplore.ieee.org
Network densification, massive multiple-input multiple-output (MIMO), and millimeter-wave
(mmWave) bands have recently emerged as some of the physical layer enablers for the …