A long-range aerial acoustic communication scheme

Shi, L, Wang, X, Yu, L, Wang, W, Wang, Z, Iqbal, M, Tsimenidis, CC ORCID: https://orcid.org/0000-0003-2247-3397 and Mumtaz, S ORCID: https://orcid.org/0000-0001-6364-6149, 2023. A long-range aerial acoustic communication scheme. Physical Communication, 60: 102135. ISSN 1874-4907

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Abstract

The effective communications range for aerial acoustic communication in indoor environment is a critical challenge for applications on smartphones. An inaudible acoustic communication system on Android phones that breaks the range limit is proposed in this paper, owing to an innovative design of the receiver by considering the time–frequency features of the received signals, using a fractional Fourier transform and 2-D mask filter to denoise the signals, and a hard detection and a soft detection approach to detect the symbols so as to tackle the severe multipath and Doppler effects in large indoor environments. Onsite test results show that an error-free communication distance of 70 m can be achieved at 20 bps, and the estimated maximum communication range could reach at least 85 m.

Item Type:	Journal article
Publication Title:	Physical Communication
Creators:	Shi, L., Wang, X., Yu, L., Wang, W., Wang, Z., Iqbal, M., Tsimenidis, C.C. and Mumtaz, S.
Publisher:	Elsevier
Date:	October 2023
Volume:	60
ISSN:	1874-4907
Identifiers:	Number Type 10.1016/j.phycom.2023.102135 DOI S1874490723001386 Publisher Item Identifier 1790546 Other
Divisions:	Schools > School of Science and Technology
Record created by:	Jonathan Gallacher
Date Added:	14 Aug 2023 13:14
Last Modified:	30 Jun 2024 03:00
URI:	https://irep.ntu.ac.uk/id/eprint/49564

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