Regression of Large-Scale Path Loss Parameters Using Deep Neural Networks


Bal M., Marey A., Ates H. F., Baykas T., GÜNTÜRK B. K.

IEEE Antennas and Wireless Propagation Letters, vol.21, no.8, pp.1562-1566, 2022 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 21 Issue: 8
  • Publication Date: 2022
  • Doi Number: 10.1109/lawp.2022.3174357
  • Journal Name: IEEE Antennas and Wireless Propagation Letters
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.1562-1566
  • Keywords: Satellites, Shadow mapping, Training, Solid modeling, Deep learning, Wireless communication, Receivers, Deep learning, height map, regression, wireless channel parameter estimation
  • Istanbul Medipol University Affiliated: Yes

Abstract

Path loss exponent and shadowing factor are among important wireless channel parameters. These parameters can be estimated using field measurements or ray-tracing simulations, which are costly and time-consuming. In this letter, we take a deep neural network-based approach, which takes either satellite image or height map of a target region as input, and estimates the desired channel parameters. We use the well-known VGG-16 architecture, pretrained on the ImageNet dataset, as the backbone to extract image features, modify it as a regression network to produce channel parameters, and retrain it on our dataset, which consists of satellite image or height map as input and channel parameters as target values. We demonstrate that deep networks can be successfully utilized in estimating path loss exponent and shadowing factor of a region, simply from the region's satellite image or height map. The trained models and test codes are publicly available on a Github page.