On the Beamforming Design of Cross-Band OWC/RF Cell-Free MIMO

Bozanis D, Mitsiou NA, Tegos SA, Diamantoulakis PD, Karagiannidis GK, Papanikolaou V (2025)

Publication Type: Journal article

Publication year: 2025

Journal

IEEE Communications Letters Institute of Electrical and Electronics Engineers (IEEE)

Book Volume: 30

Pages Range: 80-84

DOI: 10.1109/LCOMM.2025.3629703

Abstract

Based on the interplay of multiple disjoint communication bands, in this work, a cross-band cell-free multiple-input multiple-output (CF-MIMO) system is proposed in which a central controller manages multiple optical wireless communication (OWC) and radio frequency (RF) access points to enhance network performance. The proposed system employs a cross-band beamforming and resource allocation solution to jointly maximize proportional fairness. Due to the complexity and non-convexity of the resulting optimization problem, an online deep learning neural network (DNN) is introduced to solve it efficiently. The proposed approach is evaluated against state-of-the-art benchmarks, demonstrating superior performance and increased robustness under dynamic system conditions.

Authors with CRIS profile

Vasileios Papanikolaou Lehrstuhl für Digitale Übertragung (IDC)

Involved external institutions

Aristotle University of Thessaloniki

Greece (GR)

How to cite

APA:

Bozanis, D., Mitsiou, N.A., Tegos, S.A., Diamantoulakis, P.D., Karagiannidis, G.K., & Papanikolaou, V. (2025). On the Beamforming Design of Cross-Band OWC/RF Cell-Free MIMO. IEEE Communications Letters, 30, 80-84. https://doi.org/10.1109/LCOMM.2025.3629703

MLA:

Bozanis, Dimitrios, et al. "On the Beamforming Design of Cross-Band OWC/RF Cell-Free MIMO." IEEE Communications Letters 30 (2025): 80-84.

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