An Indoor Visible Light Positioning System Using Tilted LEDs with High Accuracy Article Swipe
Neha Chaudhary
,
Othman Isam Younus
,
Luís Nero Alves
,
Zabih Ghassemlooy
,
Stanislav Zvánovec
,
Hoa Le Minh
·
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.3390/s21030920
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.3390/s21030920
The accuracy of the received signal strength-based visible light positioning (VLP) system in indoor applications is constrained by the tilt angles of transmitters (Txs) and receivers as well as multipath reflections. In this paper, for the first time, we show that tilting the Tx can be beneficial in VLP systems considering both line of sight (LoS) and non-line of sight transmission paths. With the Txs oriented towards the center of the receiving plane (i.e., the pointing center F), the received power level is maximized due to the LoS components on F. We also show that the proposed scheme offers a significant accuracy improvement of up to ~66% compared with a typical non-tilted Tx VLP at a dedicated location within a room using a low complex linear least square algorithm with polynomial regression. The effect of tilting the Tx on the lighting uniformity is also investigated and results proved that the uniformity achieved complies with the European Standard EN 12464-1. Furthermore, we show that the accuracy of VLP can be further enhanced with a minimum positioning error of 8 mm by changing the height of F.
Related Topics
Concepts
Tilt (camera)
Visible light communication
Light-emitting diode
Indoor positioning system
Multipath propagation
Line (geometry)
Computer science
Plane (geometry)
Power (physics)
Optics
LED lamp
Positioning system
Line-of-sight
Acoustics
Mathematics
Engineering
Physics
Telecommunications
Geometry
Node (physics)
Accelerometer
Operating system
Aerospace engineering
Channel (broadcasting)
Quantum mechanics
Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/s21030920
- https://www.mdpi.com/1424-8220/21/3/920/pdf?version=1612237817
- OA Status
- gold
- Cited By
- 38
- References
- 38
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W3128707585
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
-
https://openalex.org/W3128707585Canonical identifier for this work in OpenAlex
- DOI
-
https://doi.org/10.3390/s21030920Digital Object Identifier
- Title
-
An Indoor Visible Light Positioning System Using Tilted LEDs with High AccuracyWork title
- Type
-
articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2021Year of publication
- Publication date
-
2021-01-29Full publication date if available
- Authors
-
Neha Chaudhary, Othman Isam Younus, Luís Nero Alves, Zabih Ghassemlooy, Stanislav Zvánovec, Hoa Le MinhList of authors in order
- Landing page
-
https://doi.org/10.3390/s21030920Publisher landing page
- PDF URL
-
https://www.mdpi.com/1424-8220/21/3/920/pdf?version=1612237817Direct link to full text PDF
- Open access
-
YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
- OA URL
-
https://www.mdpi.com/1424-8220/21/3/920/pdf?version=1612237817Direct OA link when available
- Concepts
-
Tilt (camera), Visible light communication, Light-emitting diode, Indoor positioning system, Multipath propagation, Line (geometry), Computer science, Plane (geometry), Power (physics), Optics, LED lamp, Positioning system, Line-of-sight, Acoustics, Mathematics, Engineering, Physics, Telecommunications, Geometry, Node (physics), Accelerometer, Operating system, Aerospace engineering, Channel (broadcasting), Quantum mechanicsTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
38Total citation count in OpenAlex
- Citations by year (recent)
-
2025: 8, 2024: 5, 2023: 7, 2022: 7, 2021: 11Per-year citation counts (last 5 years)
- References (count)
-
38Number of works referenced by this work
- Related works (count)
-
10Other works algorithmically related by OpenAlex
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| citation_normalized_percentile.value | 0.91846633 |
| citation_normalized_percentile.is_in_top_1_percent | False |
| citation_normalized_percentile.is_in_top_10_percent | True |