Physical Layer Security using Chaotic Antenna Arrays in Point-to-Point Wireless Communications

Ranstrom T., Arslan H., Mumcu G.

2024 IEEE Wireless and Microwave Technology Conference, WAMICON 2024, Florida, United States Of America, 15 - 16 April 2024 identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/wamicon60123.2024.10522807
  • City: Florida
  • Country: United States Of America
  • Keywords: chaotic antenna array, eavesdropping, phased antenna array, physical layer security, physically unclonable function, wireless system
  • Istanbul Medipol University Affiliated: Yes

Abstract

Chaotic antenna array (CAA)s are phased antenna arrays in which individual elements are randomized in their array position, shape, and feed line length. These randomizations generate spatially dependent large scale phase errors (with respect to antenna elements of a uniform array) that enables distinct physical layer security solutions not available to other wireless systems. Herein, a preliminary study on one such novel method, developed to combat eavesdropping is presented. In the proposed method, the CAA equipped transmitter intentionally distorts its signals based on its own array factor (AF) which includes the phase errors. This distortion significantly hampers demodulation at an eavesdropper, while a legitimate receiver that is aware of the phase errors can compensate for the added distortion.