Results 41 to 50 of about 399,468 (278)

Visible Light Communications towards 5G [PDF]

open access: yes, 2015
5G networks have to offer extremely high capacity for novel streaming applications. One of the most promising approaches is to embed large numbers of co-operating small cells into the macro-cell coverage area.
Chvojka, P.   +3 more
core   +2 more sources

Optical wireless communication based indoor positioning algorithms: performance optimisation and mathematical modelling [PDF]

open access: yes, 2018
In this paper, the performance of the optimal beam radius indoor positioning (OBRIP) and two-receiver indoor positioning (TRIP) algorithms are analysed by varying system parameters in the presence of an indoor optical wireless channel modelled in line of
Beer   +5 more
core   +1 more source

Towards Illumination-aware Visible Light Positioning Network Planning

open access: yes2022 IEEE 12th International Conference on Indoor Positioning and Indoor Navigation (IPIN), 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. In this manuscript, the Speed-constrained Multi-objective Particle Swarm Optimization (SMPSO) algorithm is applied to simultaneously optimise a roll-out's maintained ...
Bastiaens, Sander   +3 more
openaire   +1 more source

Li-Pos: A Light Positioning Framework Leveraging OFDM for Visible Light Communication

open access: yesSensors, 2021
The design of solid-state lighting is vital, as numerous metrics are involved in their exact positioning, and as it is utilized in various processes, ranging from intelligent buildings to the internet of things (IoT).
Jianbin Wu   +5 more
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

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

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

Multipath Reflections Analysis on Indoor Visible Light Positioning System

open access: yes, 2015
Visible light communication (VLC) has become a promising research topic in recent years, and finds its wide applications in indoor environments. Particularly, for location based services (LBS), visible light also provides a practical solution for indoor ...
Gu, Wenjun   +2 more
core   +1 more source

Positioning beacon system using digital camera and LEDs [PDF]

open access: yes, 2003
This paper is on a novel use of lighting or signaling devices constructed by light-emitting diodes (LEDs) as a positioning beacon. The idea is that the surface of the LED lighting device is divided into regions and used to show different visual patterns ...
Liu, HS, Pang, G
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

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