Beam Selection for Cell-Free Millimeter-Wave Massive MIMO Systems: A Matching-Theoretic Approach
Minhyun Kim, Seung‐Eun Hong, Jee-Hyeon Na
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.
Topics & Concepts
MIMOSelection (genetic algorithm)Computer scienceExtremely high frequencySpectral efficiencyMatching (statistics)Beam (structure)Selection algorithmElectronic engineeringMathematical optimizationAlgorithmTelecommunicationsPhysicsMathematicsOpticsArtificial intelligenceEngineeringStatisticsChannel (broadcasting)BeamformingMillimeter-Wave Propagation and ModelingAdvanced MIMO Systems OptimizationMicrowave Engineering and Waveguides