In this paper, the equivalence between the rate maximization and weighted minimum mean square error (WMMSE) minimization problems is utilized to design the hybrid beamforming scheme for millimeter wave relay systems. A deep unfolding method is proposed based on the structure of the WMMSE iterative algorithm, and the back propagation algorithm is updated based on the generalized chain rule of complex matrix gradients. Simulation results show that the proposed method has the satisfactory generalization ability, and prevails existing methods both in the spectral efficiency and running time.
Hybrid Beamforming for Millimeter Wave Relay Systems: A Deep Unfolding Approach
2024-06-24
473457 byte
Conference paper
Electronic Resource
English