Results 21 to 30 of about 847,683 (321)
Side Polished Fiber: A Versatile Platform for Compact Fiber Devices and Sensors
Photonic Sensors, 2022 Side polished fiber (SPF) has a controllable average roughness and length of the side-polishing region, which becomes a versatile platform for integrating multiple materials to interact with the evanescent field to fabricate all-fiber devices and sensors.
Linqing Zhuo +11 more
doaj +1 more source
Photonics, 2023 In order to deal with the increasing number of mobile devices and with their demand for Internet services, particularly social media platforms, streaming video, and online gaming, Radio-Frequency (RF) wireless networks have been pushed to their capacity ...
P. Loureiro, F. Guiomar, P. Monteiro
semanticscholar +1 more source
Secure Visible Light Communications via Intelligent Reflecting Surfaces [PDF]
ICC 2021 - IEEE International Conference on Communications, 2021 Intelligent reflecting surfaces (IRS) can improve the physical layer security (PLS) by providing a controllable wireless environment. In this paper, we propose a novel PLS technique with the help of IRS implemented by an intelligent mirror array for the ...
L. Qian +3 more
semanticscholar +1 more source
Integrating Optical Wireless Communication Into an Optical Bifocal Metrology for Aerospace
IEEE Photonics Journal, 2022 Recently an innovative bifocal optical metrology method was proposed for space applications (e.g., rendez-vous and docking), based on unmodulated white LEDs.
Veronica Spirito +3 more
doaj +1 more source
Technologies, 2022 Visible light communications (VLC) is an emerging and promising concept that is capable of solving the major challenges of 5G and Internet of Things (IoT) communication systems.
S. S. Oyewobi +2 more
semanticscholar +1 more source
Ontare, 2022 This work presents a general and introductory review of visible light communication. Visible light communication or VLC refers to wireless communications using a spectral range from 380 to 780 nm for the transmission of information. This part of the optical-electromagnetic range presents some advantages to current wireless radio frequency technologies,
Juan Felipe Gutiérrez +1 more
openaire +3 more sources
A Review of Advanced Transceiver Technologies in Visible Light Communications
Photonics, 2023 Visible Light Communication (VLC) is an emerging technology that utilizes light-emitting diodes (LEDs) for both indoor illumination and wireless communications.
Cuiwei He +3 more
semanticscholar +1 more source
Quartz-enhanced photoacoustic spectroscopy employing pilot line manufactured custom tuning forks
Photoacoustics, 2020 Pilot line manufactured custom quartz tuning forks (QTFs) with a resonance frequency of 28 kHz and a Q value of >30, 000 in a vacuum and ∼ 7500 in the air, were designed and produced for trace gas sensing based on quartz enhanced photoacoustic ...
Huadan Zheng +19 more
doaj +1 more source
DNN-Based Physical-Layer Network Coding for Visible Light Communications
Photonics, 2022 The key difference between visible light communication (VLC) and radio frequency (RF) communication is the former’s line-of-sight (LOS) transmission nature, and hence a relay node has to be adopted for VLC to extend its coverage.
Xuesong Wang +3 more
doaj +1 more source
Computer Vision-Based Localization With Visible Light Communications
IEEE Transactions on Wireless Communications, 2022 Visible light positioning and computer vision-based localization have the potential to be cost-effective technologies for accurate indoor localization. However, the feasibility of existing methods in this domain is limited. In this paper, a novel visible
Lin Bai +6 more
semanticscholar +1 more source