Results 81 to 90 of about 1,078 (202)

Underwater optical wireless sensor network [PDF]

The thesis details the development of a short range, multi-hop underwater optical wireless sensor network. Multi-hop underwater optical wireless communication using a line of sight (LOS) link can provide a greater range compared to a single hop ...
Ahmad, Zahir Uddin
core  

Statistical Modeling of the Impact of Underwater Bubbles on an Optical Wireless Channel

IEEE Open Journal of the Communications Society, 2020
In underwater wireless optical communications (UWOC), the random obstruction of light propagation by air bubbles can cause fluctuations in the incoming light intensity of a receiver.
Myoungkeun Shin, Ki-Hong Park, Mohamed-Slim Alouini   +2 more
doaj   +1 more source

Real‐Time Detection and Prevention of DoS Attack in Unmanned Marine Vehicles Using Machine Learning

SECURITY AND PRIVACY, Volume 9, Issue 2, March/April 2026.
ABSTRACT Unmanned marine vehicles (UMVs) are one of the most crucial components of the underwater communication and surveillance system in the marine and oceanographic environment. This research introduces a novel approach to stabilize the connection in an unstable underwater environment by inheriting features of communication velocities.
Noman Ali, Yousaf Saeed, Muhammad Ibrahim, Muhammad Bilal, Muhammad Tahir, Muhammad Aslam, Edore Akpokodje, Syeda Fizzah Jilani, Meng Tang   +8 more
wiley   +1 more source

Advancements in Underwater Optical Wireless Communication: Channel Modeling, PAPR Reduction, and Simulations With OFDM

IEEE Photonics Journal
Compared to underwater radio waves and acoustic communication technology, underwater optical communication technology has emerged as a technical means of underwater data and information transmission.
Liwei Yang, Zeyang Bi, Xue Liang, Lihao Zhao, Jiade Zhang, Jingyi Peng   +5 more
doaj   +1 more source

Functional Materials for Environmental Energy Harvesting in Smart Agriculture via Triboelectric Nanogenerators

Advanced Functional Materials, Volume 36, Issue 13, 12 February 2026.
This review explores functional and responsive materials for triboelectric nanogenerators (TENGs) in sustainable smart agriculture. It examines how particulate contamination and dirt affect charge transfer and efficiency. Environmental challenges and strategies to enhance durability and responsiveness are outlined, including active functional layers ...
Rafael R. A. Silva, Giulio Fatti, Emanuel Carlos, Guilherme Ferreira, Sumita Goswami, Suman Nandy, Luiz H. C. Mattoso, Elvira Fortunato, Caio G. Otoni, Rodrigo Martins   +9 more
wiley   +1 more source

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

Multi‐Dimensional Acoustic Cascaded Holographic Encryption with Instantaneous Visual Decryption via Particle Manipulation

Advanced Science, Volume 13, Issue 12, 27 February 2026.
Acoustic holograms act as key tools for information encryption, yet current schemes limit encryption dimensionality/security and require time‐consuming decryption. A compact device integrates multi‐dimensional cascaded acoustic holography with particle manipulation, employs extra secret keys, enables rapid decryption, and is validated via 1D/2D/3D ...
Qin Lin, Feiyan Cai, Yunqing Liu, Zejiao Zhou, Jiayang Li, Rujun Zhang, Hongpeng Chen, Hairong Zheng, Huailing Zhang   +8 more
wiley   +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  

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