Hybrid Beamforming for mmWave MU-MISO Systems Exploiting Multi-Agent Deep Reinforcement Learning
Qisheng Wang, Xiao Li, Shi Jin, Yijian Chen
Abstract
In this letter, we investigate the hybrid beamforming based on deep reinforcement learning (DRL) for millimeter Wave (mmWave) multi-user (MU) multiple-input-single-output (MISO) system. A multi-agent DRL method is proposed to solve the exploration efficiency problem in DRL. In the proposed method, prioritized replay buffer and more informative reward are applied to accelerate the convergence. Simulation results show that the proposed architecture achieves higher spectral efficiency and less time consumption than the benchmarks, thus is more suitable for practical applications.
Topics & Concepts
Reinforcement learningComputer scienceBeamformingSpectral efficiencyElectronic engineeringExtremely high frequencyDeep learningPower consumptionReal-time computingWirelessBase stationArtificial intelligenceOrthogonal frequency-division multiplexingInterference (communication)Artificial neural networkQ-learningMillimeter-Wave Propagation and ModelingAdvanced MIMO Systems OptimizationAdvanced Wireless Communication Technologies