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An Acoustic OFDM System with Symbol-by-Symbol Doppler Compensation for Underwater Communication
Joint Authors
Saotome, Rie
Hai, Tran Minh
Suzuki, Taisaku
Wada, Tomohisa
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-02-29
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
We propose an acoustic OFDM system for underwater communication, specifically for vertical link communications such as between a robot in the sea bottom and a mother ship in the surface.
The main contributions are (1) estimation of time varying Doppler shift using continual pilots in conjunction with monitoring the drift of Power Delay Profile and (2) symbol-by-symbol Doppler compensation in frequency domain by an ICI matrix representing nonuniform Doppler.
In addition, we compare our proposal against a resampling method.
Simulation and experimental results confirm that our system outperforms the resampling method when the velocity changes roughly over OFDM symbols.
Overall, experimental results taken in Shizuoka, Japan, show our system using 16QAM, and 64QAM achieved a data throughput of 7.5 Kbit/sec with a transmitter moving at maximum 2 m/s, in a complicated trajectory, over 30 m vertically.
American Psychological Association (APA)
Hai, Tran Minh& Saotome, Rie& Suzuki, Taisaku& Wada, Tomohisa. 2016. An Acoustic OFDM System with Symbol-by-Symbol Doppler Compensation for Underwater Communication. The Scientific World Journal،Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1120575
Modern Language Association (MLA)
Hai, Tran Minh…[et al.]. An Acoustic OFDM System with Symbol-by-Symbol Doppler Compensation for Underwater Communication. The Scientific World Journal No. 2016 (2016), pp.1-11.
https://search.emarefa.net/detail/BIM-1120575
American Medical Association (AMA)
Hai, Tran Minh& Saotome, Rie& Suzuki, Taisaku& Wada, Tomohisa. An Acoustic OFDM System with Symbol-by-Symbol Doppler Compensation for Underwater Communication. The Scientific World Journal. 2016. Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1120575
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1120575