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Acoustic Intelligent Surface System for Reliable and Efficient Underwater Communications 

open access: yesWorkshop/Conference on Underwater Networks & Systems, 2021
While acoustic-based underwater communication systems have been widely used for many decades, existing systems still suffer from the low reliability problem due to the severe multipath fading, especially in shallow water environments.
Zhi Sun   +3 more
semanticscholar   +1 more source

A Non-Contact Vital Signs Detection in a Multi-Channel 77GHz LFMCW Radar System

open access: yesIEEE 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
doaj   +1 more source

M-ary Cyclic Shift Keying Spread Spectrum Underwater Acoustic Communications Based on Virtual Time-Reversal Mirror

open access: yesSensors, 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
doaj   +1 more source

Intelligent Reflecting Surfaces for Underwater Visible Light Communications

open access: yesIEEE Photonics Journal, 2023
Intelligent reflecting surfaces (IRSs) offer paradigm shift towards enhancing the capabilities of wireless communications. The use of this emerging technology in the realm of underwater wireless systems is a promising solution to overcome the limitations
Yalçın Ata   +4 more
semanticscholar   +1 more source

Non-Orthogonal Multiple Access-Based Underwater VLC Systems in the Presence of Turbulence

open access: yesIEEE Photonics Journal, 2022
The promising potential of underwater applications in visible light communication (VLC) systems has recently gained considerable research attention, as an efficient technology for enabling high data rate, massive connectivity, and ultra-low latency ...
Lina Bariah   +4 more
doaj   +1 more source

High Speed Visible Light Communication Using Blue GaN Laser Diodes [PDF]

open access: yes, 2016
GaN-based laser diodes have been developed over the last 20 years making them desirable for many security and defence applications, in particular, free space laser communications.
Czernecki, R.   +15 more
core   +2 more sources

A stateless opportunistic routing protocol for underwater sensor networks [PDF]

open access: yes, 2018
Routing packets in Underwater Sensor Networks (UWSNs) face different challenges, the most notable of which is perhaps how to deal with void communication areas.
Boutaleb, Tuleen   +2 more
core   +1 more source

Orbital Angular Momentum-based Space Division Multiplexing for High-capacity Underwater Optical Communications [PDF]

open access: yes, 2016
To increase system capacity of underwater optical communications, we employ the spatial domain to simultaneously transmit multiple orthogonal spatial beams, each carrying an independent data channel.
Ahmed, Nisar   +16 more
core   +4 more sources

Underwater Wireless Communications for Cooperative Robotics with UWSim-NET

open access: yesApplied Sciences, 2019
The increasing number of autonomous underwater vehicles (AUVs) cooperating in underwater operations has motivated the use of wireless communications. Their modeling can minimize the impact of their limited performance in real-time robotic interventions ...
Diego Centelles   +4 more
doaj   +1 more source

Compact Elliptical UWB Antenna for Underwater Wireless Communications

open access: yesMicromachines, 2021
The increasing needs of free licensed frequency bands like Industrial, Scientific, and Medical (ISM), Wireless Local Area Network (WLAN), and 5G for underwater communications required more bandwidth (BW) with higher data transferring rate.
Adam R. H. Alhawari   +8 more
doaj   +1 more source

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