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Beam Selection for Cell-Free Millimeter-Wave Massive MIMO Systems: A Matching-Theoretic Approach
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- Authors
- Minhyun Kim, Seung-Eun Hong, Jee-Hyeon Na
- Issue Date
- 2023-08
- Citation
- IEEE Wireless Communications Letters, v.12, no.8, pp.1459-1463
- ISSN
- 2162-2337
- Publisher
- IEEE Communications Society
- Language
- English
- Type
- Journal Article
- Abstract
- In this letter, we consider beam selection in cell-free millimeter-wave (mmWave) massive multiple-input multiple-output (MIMO) systems. To address the beam selection of all access points in the network for cell-free operation, a beam selection problem that maximizes the minimum of spectral efficiencies of all user equipments is formulated. We propose an extended deferred acceptance algorithm for beam selection based on the matching theory. Additionally, we propose two intuitive beam selection algorithms. System-level simulation results demonstrate the advantage of the proposed matching theory-based beam selection method in terms of spectral efficiency for cell-free mmWave massive MIMO systems.
- KSP Keywords
- Access point, Beam selection, Deferred acceptance, Massive MIMO system, Massive multiple-input multiple-output (MIMO) systems, Matching Theory, Selection method, Selection problem, Spectral efficiency(SE), cell-free, millimeter wave(mmWave)