Channel Shortening-Based Single-Carrier Underwater Acoustic Communications in Impulsive Environment
Underwater acoustic (UWA) communication encounters significant challenges, including impulsive noise from breaking waves and marine organisms, as well as long-delay taps caused by ocean properties and high transmission rates. To address these issues, we enhance the channel estimation process by intr...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-01-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/13/1/103 |
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| _version_ | 1832588191405703168 |
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| author | Xingbin Tu Zicheng Li Yan Wei Fengzhong Qu |
| author_facet | Xingbin Tu Zicheng Li Yan Wei Fengzhong Qu |
| author_sort | Xingbin Tu |
| collection | DOAJ |
| description | Underwater acoustic (UWA) communication encounters significant challenges, including impulsive noise from breaking waves and marine organisms, as well as long-delay taps caused by ocean properties and high transmission rates. To address these issues, we enhance the channel estimation process by introducing iteratively reweighted least squares (IRLS) methods and propose an impulsive noise suppression algorithm. Furthermore, we analyze the inter-frequency interference (IFI) resulting from channel variability and implement IFI cancellation (IFIC) during iterative processing. Furthermore, an IFIC-based dual decision–feedback equalization (DDFE) algorithm is proposed for fast time-varying channels, enabling a considerable reduction in channel length and subsequent equalizer complexity. The proposed IFIC-based DDFE algorithm with impulsive noise suppression has been validated through sea trial data, demonstrating robustness against impulsive noise. Experimental results indicate that the proposed algorithm reduces click signal energy and significantly improves receiver performance compared to traditional DDFE algorithms. This research highlights the effectiveness of adapted UWA communication strategies in environments characterized by impulsive noise and long delay taps, facilitating more reliable UWA communication. |
| format | Article |
| id | doaj-art-40ecb237527541e89f04e87abf50a785 |
| institution | Kabale University |
| issn | 2077-1312 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj-art-40ecb237527541e89f04e87abf50a7852025-01-24T13:36:52ZengMDPI AGJournal of Marine Science and Engineering2077-13122025-01-0113110310.3390/jmse13010103Channel Shortening-Based Single-Carrier Underwater Acoustic Communications in Impulsive EnvironmentXingbin Tu0Zicheng Li1Yan Wei2Fengzhong Qu3Donghai Laboratory, Zhoushan 316021, ChinaOcean College, Zhejiang University, Zhoushan 316021, ChinaDonghai Laboratory, Zhoushan 316021, ChinaDonghai Laboratory, Zhoushan 316021, ChinaUnderwater acoustic (UWA) communication encounters significant challenges, including impulsive noise from breaking waves and marine organisms, as well as long-delay taps caused by ocean properties and high transmission rates. To address these issues, we enhance the channel estimation process by introducing iteratively reweighted least squares (IRLS) methods and propose an impulsive noise suppression algorithm. Furthermore, we analyze the inter-frequency interference (IFI) resulting from channel variability and implement IFI cancellation (IFIC) during iterative processing. Furthermore, an IFIC-based dual decision–feedback equalization (DDFE) algorithm is proposed for fast time-varying channels, enabling a considerable reduction in channel length and subsequent equalizer complexity. The proposed IFIC-based DDFE algorithm with impulsive noise suppression has been validated through sea trial data, demonstrating robustness against impulsive noise. Experimental results indicate that the proposed algorithm reduces click signal energy and significantly improves receiver performance compared to traditional DDFE algorithms. This research highlights the effectiveness of adapted UWA communication strategies in environments characterized by impulsive noise and long delay taps, facilitating more reliable UWA communication.https://www.mdpi.com/2077-1312/13/1/103underwater acoustic communicationimpulsive noiselong delaychannel estimationinter-frequency interferencedecision feedback equalization |
| spellingShingle | Xingbin Tu Zicheng Li Yan Wei Fengzhong Qu Channel Shortening-Based Single-Carrier Underwater Acoustic Communications in Impulsive Environment Journal of Marine Science and Engineering underwater acoustic communication impulsive noise long delay channel estimation inter-frequency interference decision feedback equalization |
| title | Channel Shortening-Based Single-Carrier Underwater Acoustic Communications in Impulsive Environment |
| title_full | Channel Shortening-Based Single-Carrier Underwater Acoustic Communications in Impulsive Environment |
| title_fullStr | Channel Shortening-Based Single-Carrier Underwater Acoustic Communications in Impulsive Environment |
| title_full_unstemmed | Channel Shortening-Based Single-Carrier Underwater Acoustic Communications in Impulsive Environment |
| title_short | Channel Shortening-Based Single-Carrier Underwater Acoustic Communications in Impulsive Environment |
| title_sort | channel shortening based single carrier underwater acoustic communications in impulsive environment |
| topic | underwater acoustic communication impulsive noise long delay channel estimation inter-frequency interference decision feedback equalization |
| url | https://www.mdpi.com/2077-1312/13/1/103 |
| work_keys_str_mv | AT xingbintu channelshorteningbasedsinglecarrierunderwateracousticcommunicationsinimpulsiveenvironment AT zichengli channelshorteningbasedsinglecarrierunderwateracousticcommunicationsinimpulsiveenvironment AT yanwei channelshorteningbasedsinglecarrierunderwateracousticcommunicationsinimpulsiveenvironment AT fengzhongqu channelshorteningbasedsinglecarrierunderwateracousticcommunicationsinimpulsiveenvironment |