Real-Time Adaptive Modulation Schemes for Underwater Acoustic OFDM Communication

Adaptive modulation received significant attention for underwater acoustic (UA) communication systems with the aim of increasing the system efficiency. It is challenging to attain a high data rate in UA communication, as UA channels vary fast, along with the environmental factors. For a time-varying...

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Main Authors: Barua, Suchi, Rong, Yue, Nordholm, Sven, Chen, Peng
Format: Journal Article
Language:English
Published: 2022
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/88920
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author Barua, Suchi
Rong, Yue
Nordholm, Sven
Chen, Peng
author_facet Barua, Suchi
Rong, Yue
Nordholm, Sven
Chen, Peng
author_sort Barua, Suchi
building Curtin Institutional Repository
collection Online Access
description Adaptive modulation received significant attention for underwater acoustic (UA) communication systems with the aim of increasing the system efficiency. It is challenging to attain a high data rate in UA communication, as UA channels vary fast, along with the environmental factors. For a time-varying UA channel, a self-adaptive system is an attractive option, which can choose the best method according to the channel condition to guarantee the continuous connectivity and high performance constantly. A real-time orthogonal frequency-division multiplexing (OFDM)-based adaptive UA communication system is presented in this paper, employing the National Instruments (NI) LabVIEW software and NI CompactDAQ device. In this paper, the received SNR is considered as a performance metric to select the transmission parameters, which are sent back to the transmitter for data transmission. In this research, a UA OFDM communication system is developed, employing adaptive modulation schemes for a nonstationary UA environment which allows to select subcarriers, modulation size, and allocate power adaptively to enhance the reliability of communication, guarantee continuous connectivity, and boost data rate. The recent UA communication experiments carried out in the Canning River, Western Australia, verify the performance of the proposed adaptive UA OFDM system, and the experimental results confirm the superiority of the proposed adaptive scheme.
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spelling curtin-20.500.11937-889202022-07-27T07:48:37Z Real-Time Adaptive Modulation Schemes for Underwater Acoustic OFDM Communication Barua, Suchi Rong, Yue Nordholm, Sven Chen, Peng CompactDAQ LabVIEW adaptive modulation orthogonal frequency-division multiplexing (OFDM) time-varying channel underwater acoustic communication Adaptive modulation received significant attention for underwater acoustic (UA) communication systems with the aim of increasing the system efficiency. It is challenging to attain a high data rate in UA communication, as UA channels vary fast, along with the environmental factors. For a time-varying UA channel, a self-adaptive system is an attractive option, which can choose the best method according to the channel condition to guarantee the continuous connectivity and high performance constantly. A real-time orthogonal frequency-division multiplexing (OFDM)-based adaptive UA communication system is presented in this paper, employing the National Instruments (NI) LabVIEW software and NI CompactDAQ device. In this paper, the received SNR is considered as a performance metric to select the transmission parameters, which are sent back to the transmitter for data transmission. In this research, a UA OFDM communication system is developed, employing adaptive modulation schemes for a nonstationary UA environment which allows to select subcarriers, modulation size, and allocate power adaptively to enhance the reliability of communication, guarantee continuous connectivity, and boost data rate. The recent UA communication experiments carried out in the Canning River, Western Australia, verify the performance of the proposed adaptive UA OFDM system, and the experimental results confirm the superiority of the proposed adaptive scheme. 2022 Journal Article http://hdl.handle.net/20.500.11937/88920 10.3390/s22093436 eng http://creativecommons.org/licenses/by/4.0/ fulltext
spellingShingle CompactDAQ
LabVIEW
adaptive modulation
orthogonal frequency-division multiplexing (OFDM)
time-varying channel
underwater acoustic communication
Barua, Suchi
Rong, Yue
Nordholm, Sven
Chen, Peng
Real-Time Adaptive Modulation Schemes for Underwater Acoustic OFDM Communication
title Real-Time Adaptive Modulation Schemes for Underwater Acoustic OFDM Communication
title_full Real-Time Adaptive Modulation Schemes for Underwater Acoustic OFDM Communication
title_fullStr Real-Time Adaptive Modulation Schemes for Underwater Acoustic OFDM Communication
title_full_unstemmed Real-Time Adaptive Modulation Schemes for Underwater Acoustic OFDM Communication
title_short Real-Time Adaptive Modulation Schemes for Underwater Acoustic OFDM Communication
title_sort real-time adaptive modulation schemes for underwater acoustic ofdm communication
topic CompactDAQ
LabVIEW
adaptive modulation
orthogonal frequency-division multiplexing (OFDM)
time-varying channel
underwater acoustic communication
url http://hdl.handle.net/20.500.11937/88920