Adaptive Hybrid Precoding Strategy for Cell-Free Massive MIMO

• Published in: Journal of Microwaves, Optoelectronics and Electromagnetic Applications Vol. 22; no. 2; pp. 257 - 267
• Main Authors: Mathe, Dercio M., Acatauassu, Diogo, Borges, Gilvan S., Rodrigues, Roberto M., Cavalcante, André M., Marquezini, Maria V., Almeida, Igor, Costa, João C. W. A.
• Format: Journal Article
• Language: English
• Published: Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo 01.06.2023; Sociedade Brasileira de Microondas e Optoeletrônica; Sociedade Brasileira de Eletromagnetismo
• Subjects: Cell-free (CF) massive multiple-input multiple-output (MIMO); ENGINEERING, ELECTRICAL & ELECTRONIC; hybrid precoding; maximum ratio transmission (MRT); minimum mean-square error (MMSE); OPTICS; spectral efficiency (SE); Cell-free (CF) massive multiple-input multiple-output (MIMO); maximum ratio transmission (MRT); minimum mean-square error (MMSE); hybrid precoding; spectral efficiency (SE)

Abstract This work presents an adaptive hybrid signal precoding strategy for Cell-Free (CF) Massive multiple-input multiple-output (MIMO) systems. The proposed solution exploits the advantages of both distributed and centralized signal processing schemes to perform precoding. In our proposal, some a...