Results 101 to 110 of about 452 (170)

Visible Light Communication vs. Optical Camera Communication: A Security Comparison Using the Risk Matrix Methodology

open access: yesPhotonics
Optical Wireless Communication (OWC) technologies are emerging as promising complements to radio-frequency systems, offering high bandwidth, spatial confinement, and license-free operation.
Ignacio Marin-Garcia   +3 more
doaj   +1 more source

A Novel Ranging Technique Based on Optical Camera Communications and Time Difference of Arrival

open access: yesApplied Sciences, 2019
In this work, a new Time Difference of Arrival (TDoA) scheme for distance measurement based on Optical Camera Communication (OCC) systems is proposed.
Jose Rabadan   +4 more
doaj   +1 more source

A blockchain database system for a rail transit equipment system

open access: yesIET Blockchain, Volume 4, Issue 1, Page 83-100, March 2024.
A blockchain system platform is developed in this paper for subway applications. Design assistance, construction assistance, operation and maintenance assistance, energy saving assistance, manpower reduction assistance, fire protection linkage assistance at transfer stations, federal learning analysis, and AI analysis are also provided, along with a ...
Junfeng An   +6 more
wiley   +1 more source

Minimal information for studies of extracellular vesicles (MISEV2023): From basic to advanced approaches

open access: yesJournal of Extracellular Vesicles, Volume 13, Issue 2, February 2024.
Abstract Extracellular vesicles (EVs), through their complex cargo, can reflect the state of their cell of origin and change the functions and phenotypes of other cells. These features indicate strong biomarker and therapeutic potential and have generated broad interest, as evidenced by the steady year‐on‐year increase in the numbers of scientific ...
Joshua A. Welsh   +1125 more
wiley   +1 more source

The first tests of smartphone camera exposure effect on optical camera communication links [PDF]

open access: yes, 2019
In this paper, we study the effect of smartphone camera exposure on the performance of optical camera communications (OCC) link. The exposure parameters of image sensor sensitivity (ISO), aperture and shutter speed are included.
Ghassemlooy, Zabih   +5 more
core   +1 more source

2D-OFDM for Optical Camera Communication: Principle and Implementation

open access: yesIEEE Access, 2019
The orthogonal frequency division multiplexing (OFDM) waveform is a well-known implementation for light fidelity but quite a novel implementation for optical camera communication (OCC).
Trang Nguyen   +2 more
doaj   +1 more source

Optical Camera Communication System for Internet of Things based on Organic Light Emitting Diodes [PDF]

open access: yes, 2019
International audienceThe inclusion of organic light emitting diodes (OLEDs) in high-end devices, such as TVs and smart-phones, along with the insertion of cameras embedded in daily use devices, provides the opportunity to establish optical camera ...
Guerra, V.   +13 more
core   +1 more source

Color-Shift Keying for Optical Camera Communication Using a Rolling Shutter Mode

open access: yesIEEE Photonics Journal, 2019
An optical camera communication (OCC) is a special type of a visible light communication that uses a complementary metal-oxide semiconductor as a receiver. However, it is difficult to apply a high-order modulation scheme to such communications because of
Hao-Wei Chen   +6 more
doaj   +1 more source

Self-Clocking Constant-Power Multi-level Scheme for Optical Camera Communication [PDF]

open access: yes
Self-clocking line codes are commonly used in Optical Camera Communication (OCC) links to ensure accurate synchronization of data transmission without the need for an explicit clock signal.
Zvanovec ,Stanislav   +6 more
core   +1 more source

RGB Synchronous VLC modulation scheme for OCC [PDF]

open access: yes, 2018
Nowadays Optical Camera Communications (OCC) have acquired an important relevance within the Visible Light Communications' (VLC) field. However, this technique faces challenges related to computational load and packet synchronization.
Rabadan, Jose   +9 more
core   +1 more source

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