scholarly journals Experimental Estimation of the Constant Envelope FM-OFDM Method Usage in Underwater Acoustic Communication Systems

2018 ◽  
Vol 8 (3) ◽  
pp. 402 ◽  
Author(s):  
Aleksandr Rodionov ◽  
Lyubov Statsenko ◽  
Peter Unru ◽  
Yury Morgunov ◽  
Aleksandr Golov ◽  
...  
Keyword(s):  
Acoustic Communication ◽  
Communication Systems ◽  
Underwater Acoustic Communication ◽  
Underwater Acoustic ◽  
Experimental Estimation ◽  
Constant Envelope

scholarly journals Analytical Performance Evaluation of GFDM in Underwater Acoustic Communication Systems

2021 ◽  
Author(s):  
Alexander Hilario-Tacuri ◽  
Leonel Soncco ◽  
Diego Donaires ◽  
Juan Borja
Keyword(s):  
Performance Evaluation ◽  
Wireless Communications ◽  
Acoustic Communication ◽  
Communication Systems ◽  
Underwater Acoustic Communication ◽  
Time Model ◽  
Underwater Acoustic ◽  
Communications Systems ◽  
Wide Range ◽  
Analytical Expressions

The rapid growth of the Internet of Things (IoT) has extended its concept to underwater environments. However, the implementation of these systems via wired communication still represents a technological challenge, mainly due to the high cost of their deployment. Therefore, wireless communications are seen as an interesting solution for the deployment of underwater communications systems. Preliminary research indicated that underwater acoustic wireless communication could be used for some Internet of Underwater Things applications, mainly due to the wide range of communications involved. However, a significant disadvantage of acoustic systems is their low transmission data rate; thus, studies and analyses to improve this disadvantage must be carried out. Considering that new waveforms have been proposed to improve the performance of terrestrial wireless communications systems, this work presents the development of general analytical expressions that allow the performance evaluation of the Generalized Frequency Division Multiplexing (GFDM) waveform in underwater environments. These analytical expressions were obtained considering a continuous-time model for the GFDM signal and modeling the underwater acoustic communication channel as a time-varying multipath channel. Numerical results were obtained for many different systems and channel parameters, allowing a quantitative evaluation of the system performance degradation.

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