Sensors (Sep 2019)

Deep Learning-Based LOS and NLOS Identification in Wireless Body Area Networks

  • Krzysztof K. Cwalina,
  • Piotr Rajchowski,
  • Olga Blaszkiewicz,
  • Alicja Olejniczak,
  • Jaroslaw Sadowski

DOI
https://doi.org/10.3390/s19194229
Journal volume & issue
Vol. 19, no. 19
p. 4229

Abstract

Read online

In this article, the usage of deep learning (DL) in ultra-wideband (UWB) Wireless Body Area Networks (WBANs) is presented. The developed approach, using channel impulse response, allows higher efficiency in identifying the direct visibility conditions between nodes in off-body communication with comparison to the methods described in the literature. The effectiveness of the proposed deep feedforward neural network was checked on the basis of the measurement data for dynamic scenarios in an indoor environment. The obtained results clearly prove the validity of the proposed DL approach in the UWB WBANs and high (over 98.6% for most cases) efficiency for LOS and NLOS conditions classification.

Keywords