Results 51 to 60 of about 256 (125)
IEEE Photonics Journal, 2021 In this paper, we experimentally demonstrate a 450-nm laser underwater optical wireless transmission system, in which a comprehensive investigation is made to show the significant performance improvement of the discrete Fourier transform spread discrete ...
Ji Du +7 more
doaj +1 more source
Channel Characterisation for Underwater Optical Wireless Vertical Links
IET Optoelectronics, Volume 19, Issue 1, January/December 2025.We describe depth‐dependent effects in underwater optical wireless links using optical technology. We compute attenuation and power losses in vertical underwater links and evaluate the available bandwidth in an underwater channel based on the transmission of visible light.
Alessandro Ugolini +3 more
wiley +1 more source
Closed Form Expressions for Underwater‐RF System Over Decode‐Forward Relaying
Journal of Sensors, Volume 2025, Issue 1, 2025.In the development of advanced communication systems for the underwater‐radio frequency (RF), use of relay has been found highly significant. Due to multipath fading and shadowing, performance of any wireless communication is severely degraded. Using relay‐based communication system deployed in the severe fading environment, we can achieve significant ...
Brijesh Kumar Singh +5 more
wiley +1 more source
International Journal of Emerging Research in Engineering, Science, and ManagementUnderwater Wireless Communication (UWC) has emerged as an important enabling technology for applications including ocean observation, offshore monitoring, underwater sensor networks, assisted navigation, and Internet of Underwater Things (IoUTs).
V Tejovathi, S Swarnalatha
doaj +1 more source
Mixed RIS-Relay NOMA-Based RF-UOWC systems [PDF]
, 2022 Reconfigurable intelligent surface (RIS), nonorthogonal multiple access (NOMA), and underwater optical wireless communication (UOWC) are paradigms of technologies that drive the development of communications nowadays.
Samir, Ahmed, +5 more
core +1 more source
IEEE Photonics Journal, 2023 Turbulence is an intractable issue for underwater optical wireless communication (UOWC). In this paper, the effects of temperature-induced turbulence on the UOWC system with correlated single-input multiple-output (SIMO) channel are comprehensively ...
Weijie Liu +3 more
doaj +1 more source
Jurnal KejuruteraanUnderwater Optical Wireless Communication (UOWC) is a promising technology for short-range communication in marine environments, offering significant advantages in terms of high data transfer rates and low latency. However, its performance is highly dependent on environmental factors such as absorption, scattering, and turbulence of light in seawater ...
Muhamad Shahir Mukhtar +6 more
openaire +1 more source
Underwater Coherent Optical Wireless Communications with Electronic Beam Steering and Turbulence Compensation Using Adaptive Optics and Aperture Averaging [PDF]
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 +5 more
core +1 more source
Relay-Assisted Technology in Optical Wireless Communications: A Survey
IEEE 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
A Brief Survey on Underwater Optical Wireless Communications
, 2021 Acoustic, radio frequency (RF) and optical waves systems are the technologies that are used to carry out underwater wireless communications. In scientific, military and industrial sectors, the development of robust and efficient submarine wireless ...
Cozzella L. +2 more
core