Além do Sinal: Autenticação Biofísica com Wi-Fi CSI e Raspberry Pi

  • Eduardo Fabrício Gomes Trindade ITA
  • Felipe Silveira de Almeida ITA
  • Lourenço Alves Pereira Junior ITA

Resumo


O Channel State Information (CSI) do Wi-Fi tem sido amplamente estudado em atividades de sensoriamento. No entanto, implementações práticas voltadas à autenticação de pessoas são pouco exploradas. Este estudo propõe o uso de dispositivos Raspberry Pi para coleta dados de CSI em um ambiente controlado e aplica aprendizado supervisionado para reconhecer características biofísicas e comportamentais visando controle de acesso físico. A pesquisa também explora o uso dos filtros de Hampel e Savitzky-Golay (SG) no pré-processamento dos dados e compara o desempenho de algoritmos de classificação, com destaque para o K-Nearest Neighbors (KNN), alcançando 99,92% de precisão na autenticação de usuários.

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Publicado
13/09/2024
TRINDADE, Eduardo Fabrício Gomes; ALMEIDA, Felipe Silveira de; PEREIRA JUNIOR, Lourenço Alves. Além do Sinal: Autenticação Biofísica com Wi-Fi CSI e Raspberry Pi. In: SIMPÓSIO BRASILEIRO DE SEGURANÇA DA INFORMAÇÃO E DE SISTEMAS COMPUTACIONAIS (SBSEG), 24. , 2024, São José dos Campos/SP. Anais [...]. Porto Alegre: Sociedade Brasileira de Computação, 2024 . p. 32-47. DOI: https://doi.org/10.5753/sbseg.2024.241787.

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