M-ary Cyclic Shift Keying Spread Spectrum Underwater Acoustic Communications Based on Virtual Time-Reversal Mirror [PDF]
Sensors, 2019 Underwater acoustic communications are challenging because channels are complex, and acoustic waves when propagating in the ocean are subjected to a variety of interferences, such as noise, reflections, scattering and so on.
Feng Zhou +5 more
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Accurate Channel Estimation and Adaptive Underwater Acoustic Communications Based on Gaussian Likelihood and Constellation Aggregation [PDF]
Sensors, 2022 Achieving accurate channel estimation and adaptive communications with moving transceivers is challenging due to rapid changes in the underwater acoustic channels.
Liang Wang +5 more
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Green Underwater Wireless Communications Using Hybrid Optical-Acoustic Technologies
IEEE Access, 2021 Underwater wireless communication is a rapidly growing field, especially with the recent emergence of technologies such as autonomous underwater vehicles (AUVs) and remotely operated vehicles (ROVs). To support the high-bandwidth applications using these
Kazi Yasin Islam +4 more
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Generalized spatial modulation for underwater backscatter communication using acoustic metasurfaces [PDF]
Scientific ReportsDesign of a long-range, high data-rate and ultra low power underwater communications system is crucial for a variety of applications. However, this task is challenging because of the underwater channel dynamics, propagation characteristics and power ...
Ashwini H. Raghavendra +2 more
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On Rethinking Cognitive Access for Underwater Acoustic Communications
IEEE Journal of Oceanic Engineering, 2016 In this paper, we investigate how to reformulate the concepts of cognitive access, originally developed for radio communications, in the framework of underwater acoustic communications.
Mauro Biagi +2 more
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High-Speed Underwater Acoustic Orbital Angular Momentum Communications
IEEE Journal of Oceanic EngineeringAcoustic vortex waves carrying orbital angular momentum (OAM) have been demonstrated to transmit multiple independent data streams simultaneously. By virtue of the inherent orthogonality of OAM modes, ring-shaped intensity pattern, and vortex phase ...
Fengzhong Qu, Yan Wei, Xingbin Tu
exaly +2 more sources
Design and simulation of acoustic vortex wave arrays for long-range underwater communication [PDF]
JASA Express Letters, 2023 The formation and propagation of acoustic vortex waves have been of increasing interest for multiple applications, namely, underwater acoustic communications. Several methods have been presented to form these vortices in underwater environments; however,
Mark E. Kelly, Chengzhi Shi
doaj +1 more source
Single Carrier with Frequency Domain Equalization for Synthetic Aperture Underwater Acoustic Communications [PDF]
Sensors, 2017 Chengbing He, Han Wang, Lianyou Jing
exaly +2 more sources
A Non-Contact Vital Signs Detection in a Multi-Channel 77GHz LFMCW Radar System
IEEE Access, 2021 The technology of vital signs detection has been proven of great use, whereas it is still limited by several challenges. One of the major challenges is the random body movements (RBMs), which significantly degrade the accuracy of the measurement. In this
Qisong Wu +4 more
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Analytical performance evaluation of GFDM in underwater acoustic communication systems
Revista Facultad de Ingeniería Universidad de Antioquia, 2021 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 ...
Alexander Hilario-Tacuri +3 more
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