A Novel Method for Joint Sensing and Communication at Terahertz Frequencies by Exploiting Rough Surfaces


Rafique S., ARSLAN H.

33rd IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2022, Virtual, Online, Japan, 12 - 15 September 2022, vol.2022-September, pp.1361-1366 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 2022-September
  • Doi Number: 10.1109/pimrc54779.2022.9977556
  • City: Virtual, Online
  • Country: Japan
  • Page Numbers: pp.1361-1366
  • Keywords: Joint sensing and communication, terahertz frequencies, rough surfaces, diffuse scattering, specular reflection
  • Istanbul Medipol University Affiliated: Yes

Abstract

In this paper, a novel method for joint sensing and communication (JSAC) is proposed by exploiting the scattering properties of a rough surface present in the environment in the terahertz (THz) frequency range. At higher frequencies, the transmitted signals are more likely to be obstructed by a blockage owing to their shorter wavelength. Therefore establishing an alternate connection between the communicating nodes is highly desired. In case when the direct line-of-sight (LOS) link is unavailable between transmitter (Tx) and receiver (Rx), the proposed framework provides a true non-line-of-sight (NLOS) connection via a rough surface. The transmitted signal interacts with the rough surface present in the environment. The scattering pattern of the reflected signal from the rough surface is exploited to realize a JSAC system. Specifically, the high-powered specular component reflected by an intermediate rough surface is used for communication whereas, a moderate-powered diffused reflected component is exploited for target sensing. Finally, simulation results are provided to analyze communication and sensing performance along specular and diffused components reflected from a rough surface.