Security in terahertz WLANs with Leaky wave antennas

Chia Yi Yeh, Yasaman Ghasempour, Yasith Amarasinghe, Daniel M. Mittleman, Edward W. Knightly

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

This paper presents the first security study of THz networks with Leaky Wave Antennas (LWAs). We employ a mix of analytical models and over-the-air experiments to explore the unique security properties of LWA links. We show via both models and experiments that the LWA's angle-frequency coupling leads to non-uniform secrecy capacity across sub-channels yielding advantages to an eavesdropper at edge frequencies. Yet, because different frequencies emit energy at different angles, the eavesdropper is thwarted from easily intercepting an entire wideband transmission. The experiments diverge from the analytical model in that the model underpredicts the eavesdropper's advantage at angles smaller than the target user and subsequent asymmetric performance across angles. Nonetheless, both the model and measurements show that increasingly wide bandwidth and correspondingly wide beams have only a modest marginal security penalty.

Original languageEnglish (US)
Title of host publicationWiSec 2020 - Proceedings of the 13th ACM Conference on Security and Privacy in Wireless and Mobile Networks
PublisherAssociation for Computing Machinery
Pages317-327
Number of pages11
ISBN (Electronic)9781450380065
DOIs
StatePublished - Jul 8 2020
Externally publishedYes
Event13th ACM Conference on Security and Privacy in Wireless and Mobile Networks, WiSec 2020 - Linz, Virtual, Austria
Duration: Jul 8 2020Jul 10 2020

Publication series

NameWiSec 2020 - Proceedings of the 13th ACM Conference on Security and Privacy in Wireless and Mobile Networks

Conference

Conference13th ACM Conference on Security and Privacy in Wireless and Mobile Networks, WiSec 2020
Country/TerritoryAustria
CityLinz, Virtual
Period7/8/207/10/20

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Safety, Risk, Reliability and Quality

Keywords

  • Leaky wave antenna
  • Terahertz
  • physical layer security

Fingerprint

Dive into the research topics of 'Security in terahertz WLANs with Leaky wave antennas'. Together they form a unique fingerprint.

Cite this