Análise do Desempenho de Sistemas DFT-s-GFDM em Canais FSC

Anderson Reis Rufino Marins, Gustavo Rodrigues de Lima Tejerina, Luciano Leonel Mendes

DOI: 10.14209/sbrt.2023.1570923805

Evento: XLI Simpósio Brasileiro de Telecomunicações e Processamento de Sinais (SBrT2023)

Keywords: DFT-s-GFDM precoding SEP PAPR

Abstract

In Brazil, TV White Spaces (TVWS) are being regulated to mitigate spectrum scarcity. For such, transceivers must adopt a suitable waveform to comply with power constraints and out-of-band emissions. Here, we evaluate the discrete Fourier transform spread generalized frequency division multiplexing (DFT-s-GFDM) for zero forcing (ZF) receivers under frequency selective channels (FSC). DFT-s-GFDM is known for providing a lower peak-to-average power ratio (PAPR) and out-of-band emission. Thus, we will propose a new expression for the symbol error probability (SEP) for FSC. The SEP will be validated through simulations and compared to the results obtained for orthogonal frequency division multiplexing (OFDM), GFDM, and Walsh-Hadamard transform GFDM (WHT-GFDM). Finally, the PAPR of the system will be evaluated for different communication scenarios.

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