Results 91 to 100 of about 8,307 (203)

A 930 m/180 Gbps*User Underwater Coherent Optical Code-Division Multiple-Access Network Based on Hybrid 256-Differential Pulse Position Modulation and Weighted Modified Prime Code Sequence

Photonics
Currently, there are three types of optical communication networks based on the communication channel between the transmitter and receiver: the optical fiber channel, visible light channel, and optical wireless channel networks. The last type has several
Morsy Ahmed Morsy Ismail, Khalid Saleh
doaj   +1 more source

General Testing Methods for Underwater Wireless Optical Communication Systems

Guangtongxin yanjiu, 2023
Underwater Wireless Optical Communications (UWOC) is an emerging high-speed underwater communication technology that has gradually attracted widespread attention in academia and industry due to its advantages of high transmission bandwidth ...
CHEN Qing-rui, LI Yan-long, Lü Wei-chao, SONG Guang-bin, XU jing   +4 more
doaj  

Field Demonstrations of Wide-Beam Optical Communications Through Water–Air Interface

IEEE Access, 2020
The connectivity of undersea sensors and airborne nodes across the water-air interface has been long sought. This study designs a free-space wireless laser communications system that yields a high net data rate of 850 Mbit/s when perfectly aligned.
Xiaobin Sun, Meiwei Kong, Omar A. Alkhazragi, Kuat Telegenov, Mustapha Ouhssain, Mohammed Sait, Yujian Guo, Burton H. Jones, Jeff S. Shamma, Tien Khee Ng, Boon S. Ooi   +10 more
doaj   +1 more source

MXene‐Based Polymer Composites for Advanced Filtration: Properties, Fabrication, and Future Directions

ChemistrySelect, Volume 11, Issue 3, 22 January 2026.
MXene–polymer nanocomposites merge high surface area with polymer flexibility to create efficient and robust filtration membranes. This review covers materials, fabrication methods, performance, challenges, and their potential for sustainable water and air filtration technologies. ABSTRACT MXene‐based polymer composites have become a promising material
Md. Hanif Munshi, Shaikh Almoon Hussain, Monira Akter, Md. Azizul Hakim, Md. Abu Hasan, Md. Jawed Kabir, Md. Kamruzzaman, Tarikul Islam   +7 more
wiley   +1 more source

A BRIEF SURVEY ON UNDERWATER WIRELESS OPTICAL COMMUNICATION SYSTEM

International Journal of Research -GRANTHAALAYAH, 2018
The underwater wireless optical communication (UWOC) system gives very high rate of underwater data transmission over several meters. It utilizes the visible band in the spectral range of 390-750nm of the electromagnetic spectrum. In this paper, we study various types of link configurations depending upon the circumstances in water environment. We also
Amayika Kakati, Deeksha Sharma, Aggarwal, Nikhil N   +2 more
openaire   +2 more sources

Impulsive Gain-Focused Channel Selection Method for Wireless Underwater Optical Communications

IEEE Access
Underwater Optical Communication (UOC) demands selective channels to reduce the impulsive scattering of waves due to turbulence and water densities. Selecting a Multi-Input-Multi-Output (MIMO) channel with less path loss and high gain is challenging to ...
Mohammed Albekairi, Dhaifallah D. Almutairi, Meshari D. Alanazi, Abdulrahman M. Alsolami   +3 more
doaj   +1 more source

A Novel Fractional Fourier Transform-Based ASK-OFDM System for Underwater Acoustic Communications

Applied Sciences, 2017
A key research area in wireless transmission is underwater communications. It has a vital role in applications such as underwater sensor networks (UWSNs) and disaster detection.
Rami Ashri, Heba Shaban, Mohamad Abou El-Nasr   +2 more
doaj   +1 more source

An Improved Accurate Solver for the Time-Dependent RTE in Underwater Optical Wireless Communications

IEEE Access, 2019
Underwater optical wireless communication (UOWC) has been widely advocated as a viable way to satisfy these high-speed links constraints in the marine medium through the use of the visible spectrum.
Elmehdi Illi, Faissal El Bouanani, Ki-Hong Park, Fouad Ayoub, Mohamed-Slim Alouini   +4 more
doaj   +1 more source

On the Relative Effect of Underwater Optical Turbulence in Different Channel Conditions

IEEE Access
This paper presents a simulation framework for modelling optical underwater turbulence in conjunction with absorption and scattering. Using this technique, the channel is evaluated in two ways: the turbulent statistics in different channel conditions ...
Callum T. Geldard, John S. Thompson, Wasiu O. Popoola   +2 more
doaj   +1 more source

Angular Circle Array Multiple Input Multiple Output Underwater Optical Wireless Communications

Photonics
This paper constructs a simulation platform for underwater wireless optical single-input single-output (SISO) communication systems and quantitatively evaluates communication performance indicators.
Zhuoqi Chen, Yuhe Liu, Xiang Yi, Ruiqin Zhao   +3 more
doaj   +1 more source