On the development of acoustic communication systems through unconventional media

Yang, Sijung

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https://hdl.handle.net/2142/114084 Copy

Description

Title

On the development of acoustic communication systems through unconventional media

Author(s)

Yang, Sijung

Issue Date

2021-11-30

Director of Research (if dissertation) or Advisor (if thesis)

Singer, Andrew C.

Doctoral Committee Chair(s)

Singer, Andrew C.

Committee Member(s)

• Hashash, Youssef M. A.
• Oelze, Michael L.
• Smaragdis, Paris

Department of Study

Electrical & Computer Eng

Discipline

Electrical & Computer Engr

Degree Granting Institution

University of Illinois at Urbana-Champaign

Degree Name

Ph.D.

Degree Level

Dissertation

Keyword(s)

• Acoustic communications
• Wireless through-soil communications
• Channel estimation
• Underwater acoustics
• Dynamic time warping

Abstract

"One challenge of modern ""internet-of-things"" networks occurs because many of their installments are surrounded by unconventional media for communication like soils and water, where traditional radio-frequency (RF) signals cannot propagate for communication well. In some instances, acoustic communication can provide an alternative to RF signals in such environments, providing longer communication distances with less power consumption. In this thesis, we propose several approaches for the development of acoustic communication systems through unconventional media for a variety of potential applications. First, we focus on an ad-hoc implementation of an acoustic communication system for through-soil communication. Specifically, we propose a miniaturized through-soil acoustic modem, which can be implemented for practical underground applications including infrastructural monitoring, enabling reliable data transmission for tens of meter distances. The development of acoustic communication systems requires considerable field data to test and evaluate their performance in realistic environments, which can be extremely costly. In the second part of this thesis, we propose a practical method based on dithering techniques to enhance and maximize the reusability of such valuable field data when developing acoustic communication systems. In the last part of this thesis, we focus on algorithms for Doppler compensation in acoustic communications, one of the most common challenges in a variety of acoustic communications. In particular, we propose what we call hyperdimensional dynamic time warping to jointly estimate time varying Doppler and information symbols in multipath channels with non-uniform Doppler."

Graduation Semester

2021-12

Type of Resource

Thesis

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http://hdl.handle.net/2142/114084

Copyright and License Information

Copyright 2021 Sijung Yang

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