Results 51 to 60 of about 57,426 (277)

Single-Source VLCP System Based on Solar Cell Array Receiver and Right-Angled Tetrahedron Trilateration VLP (RATT-VLP) Algorithm

open access: yesPhotonics
A significant deployment limitation for visible light communication and positioning (VLCP) systems in energy- and light-source-restricted scenarios is the reliance of photodetectors (PDs) on external power supplies, compromising sustainability and ...
Dawei Xie, Zhongxu Liu, Changyuan Yu
doaj   +1 more source

Visible Light Communication and Positioning [PDF]

open access: yes, 2019
In recent years, wireless communications have significantly evolved due to the advanced technology of smartphones;, portable devices; and the rapid growth of Internet of Things, e-Health, and intelligent transportation systems . Moreover, there is anare increasing need fors of emerging intelligent services like positioning and sensing in athe future ...
openaire   +3 more sources

A Two-LED Based Indoor Three-Dimensional Visible Light Positioning and Orienteering Scheme for a Tilted Receiver

open access: yesPhotonics, 2022
Conventional visible light positioning (VLP) systems usually require at least three light-emitting diodes (LEDs) to enable trilateration or triangulation, which is infeasible when the LED condition is constrained. In this paper, we propose a novel indoor
Xiaodi You   +3 more
doaj   +1 more source

Towards illumination-aware Visible Light Positioning network planning [PDF]

open access: yes, 2022
A Visible Light Positioning (VLP) network planner holds tremendous economic potential in that it permits designing a roll-out within given cost, illuminance and accuracy bounds.
Goudos, Sotirios   +3 more
core   +1 more source

Multi-node cooperation based robust visible light intelligent positioning

open access: yesDianxin kexue, 2023
Visible light communication is expected to be one of the key alternative technologies for 6G with the advantages of abundant spectrum resources, less susceptibility to electromagnetic pollution and green safety, which also provides a new idea for high ...
Sicong LIU   +3 more
doaj   +2 more sources

A visible light-based system for automotive relative positioning [PDF]

open access: yes2017 IEEE SENSORS, 2017
This paper details a simple relative positioning system based on phase-shift measurement with the vehicles lightemitting diode headlamps and taillights. A simulation study of this system is carried out in a realistic environment. It shows that the longitudinal measurement resolution is 12.4 cm over 18 m whereas the lateral distance can be estimated ...
BĂ©chadergue, Bastien   +2 more
openaire   +2 more sources

Multilateration Approach for Wide Range Visible Light Indoor Positioning System Using Mobile CMOS Image Sensor

open access: yesApplied Sciences, 2021
Visible light positioning (VLP) is a cost-effective solution to the increasing demand for real-time indoor positioning. However, owing to high computational costs and complicated image processing procedures, most of the existing VLP systems fail to ...
Md Habibur Rahman   +2 more
doaj   +1 more source

Inertial Sensor-Assisted High-Coverage Visible Light Positioning Algorithm

open access: yesIEEE Photonics Journal
Existing visible light positioning (VLP) algorithms typically require multiple LEDs to achieve high-precision positioning. However, in practice, the number of available LEDs is influenced by various factors such as the layout of LEDs and the field-of ...
Fugui He   +6 more
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

LEDPOS: Indoor Visible Light Positioning Based on LED as Sensor and Machine Learning

open access: yesIEEE Access
Accurate indoor positioning is becoming increasingly important, especially in highly automated industrial environments with robots. In addition, LED-based lighting is also being used more and more frequently in such application fields.
Christian Fragner   +3 more
doaj   +1 more source

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