Performance of Cell-Free Massive MIMO Networks under Rayleigh and Rician fading

Thaissa Toyomi Rocha Ueoka, Daynara Dias Souza, Marx Miranda de Freitas, Andre Mendes Cavalcante, Joao Weyl Costa

DOI: 10.14209/sbrt.2022.1570811228

Evento: XL Simpósio Brasileiro de Telecomunicações e Processamento de Sinais (SBrT2022)

Keywords: Cell-free massive MIMO Channel hardening Favorable propagation Rayleigh and Rician fading

Abstract

This work investigates the impact of different channels fadings on the favorable propagation, channel hardening, and spectral efficiency of the cell-free massive multiple-input multiple-output (MIMO) system. The analyzes consider both line-of-sight (LOS) and non-LOS (NLOS) channels in indoor and outdoor environments. Specifically, the channel may be subject to correlated and uncorrelated Rayleigh or Rician fading. The results indicate that cell-free systems can provide more hardening and spectral efficiency when the channel behaves like a Rician fading. On the other hand, they may benefit from more favorable propagation in Rayleigh fading channels.

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