Covert active sensing of linear systems

Dennis Goeckel, Boulat A. Bash, Azadeh Sheikholeslami, Saikat Guha, Don Towsley

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

3 Scopus citations

Abstract

There has been significant recent work on the limits of covert communications, where the presence of a transmitted signal is kept hidden from an attentive adversary. In this paper, we turn our attention to the covert sensing problem. In particular, one of the main drawbacks of active sensing is that it can reveal the presence and/or location of the sensor. But active sensing is necessary or desirable in many applications, spanning areas from range finding in radar systems to channel estimation in wireless communication systems. Hence, we consider the active sensing of linear systems operating on the transmitted signal, but with the requirement that the probing signal is not detectable by a capable and attentive adversary. We first consider the frequency-nonselective standard 'block fading' channel from wireless communications and identify the conditions under which covert active sensing is possible. We then turn our attention to the covert sensing of linear systems modeled as bandlimited wide-sense stationary random processes, where we present initial but not conclusive results. Finally, we give thoughts on the extension of the results to frequency-selective models and present ideas for future work.

Original languageEnglish (US)
Title of host publicationConference Record of 51st Asilomar Conference on Signals, Systems and Computers, ACSSC 2017
EditorsMichael B. Matthews
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1692-1696
Number of pages5
ISBN (Electronic)9781538618233
DOIs
StatePublished - Apr 10 2018
Event51st Asilomar Conference on Signals, Systems and Computers, ACSSC 2017 - Pacific Grove, United States
Duration: Oct 29 2017Nov 1 2017

Publication series

NameConference Record of 51st Asilomar Conference on Signals, Systems and Computers, ACSSC 2017
Volume2017-October

Conference

Conference51st Asilomar Conference on Signals, Systems and Computers, ACSSC 2017
CountryUnited States
CityPacific Grove
Period10/29/1711/1/17

ASJC Scopus subject areas

  • Control and Optimization
  • Computer Networks and Communications
  • Hardware and Architecture
  • Signal Processing
  • Biomedical Engineering
  • Instrumentation

Fingerprint Dive into the research topics of 'Covert active sensing of linear systems'. Together they form a unique fingerprint.

Cite this