Channel Emulator Framework for Underwater Acoustic Communications
In this paper, we develop a tractable mathematical model and an emulation framework for communicating information through water using acoustic signals. Water is considered one of the most complex media to model due to its vastness and variety of characteristics, which depend on the scenario, the typ...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-05-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/9/5818 |
| _version_ | 1797602909122199552 |
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| author | Indrakshi Dey Nicola Marchetti |
| author_facet | Indrakshi Dey Nicola Marchetti |
| author_sort | Indrakshi Dey |
| collection | DOAJ |
| description | In this paper, we develop a tractable mathematical model and an emulation framework for communicating information through water using acoustic signals. Water is considered one of the most complex media to model due to its vastness and variety of characteristics, which depend on the scenario, the type of water body (lakes, rivers, tanks, sea, etc.), and the geographical location of the water body being considered. Our proposed mathematical model involves the concept of damped harmonic oscillators to represent the medium (water); Milne’s oscillator technique is used to map the interaction between the acoustic signal and water. Wave equations formulated for acoustic pressure and acoustic wave velocity are employed to characterise the travelling acoustic signal. The signal strength, phase shift, and time delay generated from the mathematical model are then inputted into a Simulink-based emulator framework to generate channel samples and channel impulse responses. The emulator utilises the wide sense stationary uncorrelated scattering (WSSUS) assumption and a finite sum-of-sinusoids (SOS) approach with a uniformly distributed phase to generate the channel samples. By utilising this emulator platform, it becomes feasible to generate profiles for amplitude variation, the Doppler shift, and spread experienced by any travelling signal in various underwater communication scenarios. Such a platform can be employed to simulate different communication scenarios, underwater network topologies, and data for training various learning models. Additionally, it can predict the performance of different modulation, multiplexing, error correction, and multi-access techniques for underwater acoustic communication (UWAC) systems. |
| first_indexed | 2024-03-11T04:23:10Z |
| format | Article |
| id | doaj.art-5727358b29394e528e11ce0bb76c4d54 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T04:23:10Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-5727358b29394e528e11ce0bb76c4d542023-11-17T22:39:14ZengMDPI AGApplied Sciences2076-34172023-05-01139581810.3390/app13095818Channel Emulator Framework for Underwater Acoustic CommunicationsIndrakshi Dey0Nicola Marchetti1Walton Institute of Information and Communication Sciences, X91 P20H Waterford, IrelandSchool of Engineering, Trinity College Dublin, D02 PN40 Dublin, IrelandIn this paper, we develop a tractable mathematical model and an emulation framework for communicating information through water using acoustic signals. Water is considered one of the most complex media to model due to its vastness and variety of characteristics, which depend on the scenario, the type of water body (lakes, rivers, tanks, sea, etc.), and the geographical location of the water body being considered. Our proposed mathematical model involves the concept of damped harmonic oscillators to represent the medium (water); Milne’s oscillator technique is used to map the interaction between the acoustic signal and water. Wave equations formulated for acoustic pressure and acoustic wave velocity are employed to characterise the travelling acoustic signal. The signal strength, phase shift, and time delay generated from the mathematical model are then inputted into a Simulink-based emulator framework to generate channel samples and channel impulse responses. The emulator utilises the wide sense stationary uncorrelated scattering (WSSUS) assumption and a finite sum-of-sinusoids (SOS) approach with a uniformly distributed phase to generate the channel samples. By utilising this emulator platform, it becomes feasible to generate profiles for amplitude variation, the Doppler shift, and spread experienced by any travelling signal in various underwater communication scenarios. Such a platform can be employed to simulate different communication scenarios, underwater network topologies, and data for training various learning models. Additionally, it can predict the performance of different modulation, multiplexing, error correction, and multi-access techniques for underwater acoustic communication (UWAC) systems.https://www.mdpi.com/2076-3417/13/9/5818acoustic signalsunderwater communicationschannel impulse responsesDoppler frequenciesperformance evaluation and monitoringSimulink-based emulator |
| spellingShingle | Indrakshi Dey Nicola Marchetti Channel Emulator Framework for Underwater Acoustic Communications Applied Sciences acoustic signals underwater communications channel impulse responses Doppler frequencies performance evaluation and monitoring Simulink-based emulator |
| title | Channel Emulator Framework for Underwater Acoustic Communications |
| title_full | Channel Emulator Framework for Underwater Acoustic Communications |
| title_fullStr | Channel Emulator Framework for Underwater Acoustic Communications |
| title_full_unstemmed | Channel Emulator Framework for Underwater Acoustic Communications |
| title_short | Channel Emulator Framework for Underwater Acoustic Communications |
| title_sort | channel emulator framework for underwater acoustic communications |
| topic | acoustic signals underwater communications channel impulse responses Doppler frequencies performance evaluation and monitoring Simulink-based emulator |
| url | https://www.mdpi.com/2076-3417/13/9/5818 |
| work_keys_str_mv | AT indrakshidey channelemulatorframeworkforunderwateracousticcommunications AT nicolamarchetti channelemulatorframeworkforunderwateracousticcommunications |