Results 11 to 20 of about 8,307 (202)

A Testbed for Investigating the Effect of Salinity and Turbidity in the Red Sea on White-LED-Based Underwater Wireless Communication

open access: yesApplied Sciences, 2022
Several industrial and scientific underwater applications require high-speed wireless connectivity. Acoustic communications have low data rates and high latency, whereas attenuation in seawater severely limits radio frequency communications.
Ayshah S. Alatawi
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
Yalcin Ata   +4 more
doaj   +1 more source

Investigation of Underwater Wireless Optical Communications Links With Surface Currents and Tides for Oceanic Signal Transmission

open access: yesIEEE Photonics Journal, 2021
This report investigated underwater wireless optical communication (UWOC) links in the presence of surface currents and tides. The scenario of surface currents and tides was generated by a sea water tank, a water pipe, and a water pump of different flow ...
Zhijian Lv   +3 more
doaj   +1 more source

Recent Trends in Underwater Visible Light Communication (UVLC) Systems

open access: yesIEEE Access, 2022
In recent years, underwater visible light communication (UVLC) has become a potential wireless carrier candidate for signal transmission in highly critical, unknown, and acrimonious water mediums such as oceans.
Mohammad Furqan Ali   +2 more
doaj   +1 more source

Relay-Assisted Technology in Optical Wireless Communications: A Survey

open access: yesIEEE Access, 2020
When the distance between the source and the target is long, the signal will be affected by atmospheric turbulence, weather conditions and obstacles, which cannot support the information transmission.
Wenwen Liu   +4 more
doaj   +1 more source

Optical OFDM for SiPM-Based Underwater Optical Wireless Communication Links [PDF]

open access: yesSensors, 2020
Underwater optical wireless systems have dual requirements of high data rates and long ranges in harsh scattering and attenuation conditions. In this paper, we investigate the advantages and limitations of optical orthogonal frequency-division multiplexing (O-OFDM) signaling when a silicon photo-multiplier (SiPM) is used at the receiver in order to ...
Taha Essalih   +3 more
openaire   +3 more sources

Green Underwater Wireless Communications Using Hybrid Optical-Acoustic Technologies

open access: yesIEEE 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
doaj   +1 more source

Monocular vision aided optical tracking for underwater optical wireless communications

open access: yesOptics Express, 2022
Underwater optical wireless communication (UOWC) has received increasing attention due to its distinctive characteristics such as high bandwidth and low latency. However, the UOWC link is usually vulnerable to water flow, underwater turbulence and the terminals’ own vibration. Thus, to maintain a stable transmission link, an accurate tracking method is
Jingyi Tang   +3 more
openaire   +2 more sources

Underwater Wireless Laser-Based Communications Using Optical Phased Array Antennas

open access: yesIEEE Photonics Journal, 2023
An underwater optical wireless communication system concept based on optical phased array antennas is presented. With this optical phased array, a laser beam can be electronically steered to adjust not only the azimuth and elevation angles, but also the ...
Ali Derakhshandeh   +2 more
doaj   +1 more source

Re-Evaluation of RF Electromagnetic Communication in Underwater Sensor Networks [PDF]

open access: yes, 2010
Most underwater wireless networks use acoustic waves as the transmission medium nowadays, but the chances of getting much more out of acoustic modems are quite remote. Optical links are impractical for many underwater applications.
Gordon Dickers   +4 more
core   +1 more source

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