Journal
ELECTRONICS LETTERS
Volume 59, Issue 2, Pages -Publisher
WILEY
DOI: 10.1049/ell2.12718
Keywords
5G mobile communication; MIMO communication
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In this research, a beamforming neural network (BFNNet) is developed to maximize the weighted sum-rate in the multiple-input-single-output (MISO) system with dirty-paper coding (DPC) technique. The BFNNet utilizes deep learning, uplink-downlink duality, and explores the optimal solution structure to achieve near-optimal solutions and reduce computational complexity.
Beamforming technique can effectively improve the spectrum utilization in the multi-antenna systems, while the dirty-paper coding (DPC) technique can reduce the inter-user interference. In this letter, it is aimed to maximize the weighted sum-rate under the total power constraint in the multiple-input-single-output (MISO) system with the DPC technique. However, the existing methods of beamforming optimization mainly rely on customized iterative algorithms, which have high computational complexity. To address this issue, the beamforming neural network (BFNNet) is devised by utilizing the deep learning technique and the uplink-downlink duality and exploring the optimal solution structure, which includes the deep neural network module and the signal processing module. Simulation results show that the BFNNet can achieve near-optimal solutions and significantly reduce computational complexity.
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