Results 101 to 110 of about 8,307 (202)

Underwater Wireless Optical Communication System Using Blue LEDs

Journal of Physics: Conference Series, 2016
We demonstrate a self-designed underwater wireless optical communication system using blue LEDs. The performance of the transmitter and receiver was experimentally investigated. Four different square wave signals (10 KHz, 100 KHz, 500 KHz and 1 MHz) were successfully transmitted via a short water channel at the first phase.
Aobo Lin, Zheng Tong, Yuhang Song, Meiwei Kong, Jing Xu   +4 more
openaire   +1 more source

Underwater Electromagnetic Sensor Networks—Part I: Link Characterization

Sensors, 2017
Underwater Wireless Sensor Networks (UWSNs) using electromagnetic (EM) technology in marine shallow waters are examined, not just for environmental monitoring but for further interesting applications.
Gara Quintana-Díaz, Pablo Mena-Rodríguez, Iván Pérez-Álvarez, Eugenio Jiménez, Blas-Pablo Dorta-Naranjo, Santiago Zazo, Marina Pérez, Eduardo Quevedo, Laura Cardona, J. Joaquín Hernández   +9 more
doaj   +1 more source

Underwater Coherent Optical Wireless Communications with Electronic Beam Steering and Turbulence Compensation Using Adaptive Optics and Aperture Averaging

Photonics
A novel approach to underwater optical wireless coherent communications using liquid crystal spatial light modulators (LC-SLMs) and an aperture averaging lens, in combination with optical phased-array (OPA) antennas, is presented. A comprehensive channel
Ali Derakhshandeh, Peter A. Hoeher, Stephan Pachnicke   +2 more
doaj   +1 more source

A survey of underwater wireless optical communication

, 2015
Underwater wireless communication refers to transmitting data in unguided water environment through the use of wireless carriers, i.e., radio-frequency wave, acoustic wave, and optical wave. We focus, in this thesis, on the underwater wireless optical communication (UWOC) that employs optical wave as the transmission carriers.
openaire   +1 more source

Coverage Performance of Non-Lambertian Underwater Wireless Optical Communications for 6G Internet of Things

Inventions
In medium- and short-range underwater application scenarios, thanks to the superior performance in transmission bandwidth, link latency, and security, underwater wireless optical communication (UWOC) is growing to be a promising complement to the mature ...
Jupeng Ding, Chih-Lin I, Jintao Wang, Jian Song   +3 more
doaj   +1 more source

Adaptive Relay Free Space Networking for Autonomous Underwater Drone Swarms. [PDF]

Sensors (Basel)
Stack D, Nuti D, Rahmati M.
europepmc   +1 more source

Spectral efficient and high data rate ring topology based UWOC system with carrier-free optical add-drop nodes. [PDF]

PLoS One
Armghan A, Chaoui S, Alsharari M, Aliqab K, Ghafoor S, Ijaz M, Mirza J.   +6 more
europepmc   +1 more source

Functionally adaptive smart metasurface window with Weber beams for obstacle-avoiding communications in vehicle cabin. [PDF]

Natl Sci Rev
Luo S, Xia J, Wang Y, Jiang R, Xie Q, Hao G, Luo Y, Cui TJ, Zhang J.   +8 more
europepmc   +1 more source

Underwater Wireless Optical Communication Alignment for Autonomous Underwater Vehicles

Underwater Wireless Optical Communication Alignment for Autonomous Underwater Vehicles
学位の種別: 課程博士 審査委員会委員 : （主査）東京大学准教授 巻 俊宏, 東京大学教授 多部田 茂, 東京大学教授 高木 健, 東京大学准教授 和田 良太, 東京海洋大学教授 近藤 ...
openaire  

Next-generation UOWC enabling high-speed and secure RGB image transmission using IRSM-OCDMA with PSO-based image enhancement. [PDF]

Sci Rep
Abd El-Mottaleb SA, Atieh A, Aly MH.
europepmc   +1 more source