autores Adriano Jorge Cardoso Moreira Silva, Ivo Miguel Menezes Moreira, Adriano Silva, I. Pendao, C. Pendão, Cristiano Gonçalves Torres-Sospedra, J. Moreira, A. Torres-Sospedra, Joaquín
palavras-chave Wi-Fi finger-printing degradation indoor propagation radio environment radio map radio signals