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Optimizing Compressed Sensing for seeing through walls based on Wireless Signals
Linköping University, Department of Science and Technology, Communications and Transport Systems. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-0019-8411
Linköping University, Department of Science and Technology, Physics, Electronics and Mathematics. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Science and Technology, Communications and Transport Systems. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0003-1066-2094
2019 (English)In: IEEE Symposium on Computers and Communications (ISCC), 2019, p. 1-6Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, we developed a theoretical and experimental framework for the mapping of obstacles using WiFi, based on a small number of wireless channel samples. This is very challenging due to the numerous channel coefficients to be estimated over the time-varying channel and the channel estimation of a wireless signal transmission to be considered for compressive sampling. In a typical communication system, the signal is sampled at least twice at the highest frequency contained in the signal. However, this limits efficient ways to compress the signal, as it places a huge burden on sampling the entire signal while only a small number of the transform coefficients are needed to represent the signal. To tackle this problem, we will focused on a mathematical optimization problem for the most efficient compressed sensing method called $\ell_1$-norm, known as Basis Pursuit. Before optimizing the problem, the noise was removed from the signal, namely, multipath fading. Our experimental results show the improved performance in the number of iterations for obtaining a framework for the mapping of obstacles.

Place, publisher, year, edition, pages
2019. p. 1-6
Keywords [en]
Compressed Sensing; Imaging; Signal Reconstruction; Basis Pursuit; Radio Tomographic; Digital Image Reconstruction
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:liu:diva-163563DOI: 10.1109/ISCC47284.2019.8969738OAI: oai:DiVA.org:liu-163563DiVA, id: diva2:1392993
Conference
IEEE Symposium on Computers and Communications (ISCC), Barcelona, Spain, 29 June-3 July 2019
Available from: 2020-02-14 Created: 2020-02-14 Last updated: 2020-02-17Bibliographically approved

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Fowler, ScottBaravdish, GeorgeRudberg, Martin

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  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
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Language
  • de-DE
  • en-GB
  • en-US
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Output format
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