Results 41 to 50 of about 10,341 (217)

Adaptive beam shaping for enhanced underwater wireless optical communication

open access: yesOptics Express, 2021
In this paper, we proposed and experimentally verified a diffraction-based optical beam shaping technique for underwater optical communication (UWOC) applications. The proposed method aimed to address the key issue in UWOC links, i.e., the high propagation loss experienced by the launched optical beam.
Jiewen Nie   +7 more
openaire   +2 more sources

High-speed Underwater Wireless Optical Communication: Potential, Challenges, and Possible Solutions [PDF]

open access: yes, 2017
Traditional underwater communication systems rely on acoustic modems due their reliability and long range. However their limited data rates, lead to the exploration of alternative techniques.
Alouini, Mohamed-Slim
core  

Marine Wireless Big Data: Efficient Transmission, Related Applications, and Challenges

open access: yes, 2017
The vast volume of marine wireless sampling data and its continuously explosive growth herald the coming of the era of marine wireless big data. Two challenges imposed by these data are how to fast, reliably, and sustainably deliver them in extremely ...
Jiang, Tao   +3 more
core   +1 more source

Underwater optical wireless communications, networking, and localization: A survey [PDF]

open access: yesAd Hoc Networks, 2019
Underwater wireless communications can be carried out through acoustic, radio frequency (RF), and optical waves. Compared to its bandwidth limited acoustic and RF counterparts, underwater optical wireless communications (UOWCs) can support higher data rates at low latency levels. However, severe aquatic channel conditions (e.g., absorption, scattering,
Nasir Saeed   +3 more
openaire   +3 more sources

Boron‐Doped Nano‐Crystalline Coated Carbon Fibers for Phasic Dopamine Sensing

open access: yesAdvanced Healthcare Materials, EarlyView.
This uniform coating presents a mix of graphitic and diamond‐like carbon to create a mechanically and electrically robust alternative for the electrochemical detection of dopamine. The electrodes in this work possess the equivalent sensitivity to the state‐of‐the‐art FSCV dopamine detecting electrodes, whilst demonstrating an ability to withstand ...
Simon J. Higham   +19 more
wiley   +1 more source

Underwater Drone-Enabled Wireless Communication Systems for Smart Marine Communications: A Study of Enabling Technologies, Opportunities, and Challenges

open access: yesDrones
Underwater drones such as autonomous underwater vehicles (AUVs) and remotely operated vehicles (ROVs) are revolutionizing underwater operations and are essential for advanced marine applications like environmental monitoring, deep-sea exploration, and ...
Sarun Duangsuwan, Katanyoo Klubsuwan
doaj   +1 more source

Scenarios for Educational and Game Activities using Internet of Things Data [PDF]

open access: yes, 2018
Raising awareness among young people and changing their behavior and habits concerning energy usage and the environment is key to achieving a sustainable planet.
Chatzigiannakis, Ioannis   +4 more
core   +2 more sources

Soft Ionic and Electronic Triboelectric Nanogenerators: Toward Attachable and Implantable Biomedical Applications

open access: yesAdvanced Materials, EarlyView.
This review provides an overview of triboelectric nanogenerator (TENG)–based biomedical applications by classifying studies into electronic and ionic systems across attachable and implantable platforms. It summarizes key material choices, device structures, and working mechanisms that characterize current TENG‐based research, and outlines six future ...
Kyongtae Choi   +12 more
wiley   +1 more source

Research on the Optical Receiving Performance of Underwater Wireless Optical Communication System Based on Fresnel Lens

open access: yesPhotonics
In response to the practical demands of high rate, long distance, low cost and miniaturized equipment for underwater wireless communication, an underwater wireless optical communication experimental system with Fresnel lenses as optical receiving ...
Ya Zhao   +4 more
doaj   +1 more source

A Salinity-Impact Analysis of Polarization Division Multiplexing-Based Underwater Optical Wireless Communication System with High-Speed Data Transmission

open access: yesJournal of Sensor and Actuator Networks, 2023
The majority of the Earth’s surface is covered by water, with oceans holding approximately 97% of this water and serving as the lifeblood of our planet.
Sushank Chaudhary   +6 more
doaj   +1 more source

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