scholarly journals Error compensation in indoor positioning systems based on software defined visible light communication

2019 ◽  
Vol 34 ◽  
pp. 235-245 ◽  
Author(s):  
A. Costanzo ◽  
V. Loscri
Keyword(s):  
Visible Light ◽  
Error Compensation ◽  
Visible Light Communication ◽  
Indoor Positioning ◽  
Positioning Systems

scholarly journals A Low-Cost Visible Light Positioning System for Indoor Positioning

Sensors ◽  
2020 ◽  
Vol 20 (18) ◽  
pp. 5145 ◽  
Author(s):  
Juan Torres ◽  
Aitor Montes ◽  
Sandra Mendoza ◽  
Pedro Fernández ◽  
Juan Betancourt ◽  
...  
Keyword(s):  
Visible Light ◽  
Electromagnetic Interference ◽  
Urban Areas ◽  
Low Cost ◽  
Visible Light Communication ◽  
Indoor Positioning ◽  
Positioning System ◽  
Time To Market ◽  
Position Information ◽  
Positioning Systems

Currently, a high percentage of the world’s population lives in urban areas, and this proportion will increase in the coming decades. In this context, indoor positioning systems (IPSs) have been a topic of great interest for researchers. On the other hand, Visible Light Communication (VLC) systems have advantages over RF technologies; for instance, they do not need satellite signals or the absence of electromagnetic interference to achieve positioning. Nowadays, in the context of Indoor Positioning (IPS), Visible Light Positioning (VLP) systems have become a strong alternative to RF-based systems, allowing the reduction in costs and time to market. This paper shows a low cost VLP solution for indoor systems. This includes multiple programmable beacons and a receiver which can be plugged to a smartphone running a specific app. The position information will be quickly and securely available through the interchange between the receiver and any configurable LED-beacon which is strategically disposed in an area. The implementation is simple, inexpensive, and no direct communication with any data server is required.

scholarly journals Improved Visible Light-Based Indoor Positioning System Using Machine Learning Classification and Regression

2019 ◽  
Vol 9 (6) ◽  
pp. 1048 ◽  
Author(s):  
Huy Tran ◽  
Cheolkeun Ha
Keyword(s):  
Machine Learning ◽  
Visible Light ◽  
Noise Reduction ◽  
Indoor Positioning ◽  
Computational Time ◽  
Dual Function ◽  
Positioning System ◽  
Positioning Accuracy ◽  
Positioning Systems ◽  
Machine Learning Classification

Recently, indoor positioning systems have attracted a great deal of research attention, as they have a variety of applications in the fields of science and industry. In this study, we propose an innovative and easily implemented solution for indoor positioning. The solution is based on an indoor visible light positioning system and dual-function machine learning (ML) algorithms. Our solution increases positioning accuracy under the negative effect of multipath reflections and decreases the computational time for ML algorithms. Initially, we perform a noise reduction process to eliminate low-intensity reflective signals and minimize noise. Then, we divide the floor of the room into two separate areas using the ML classification function. This significantly reduces the computational time and partially improves the positioning accuracy of our system. Finally, the regression function of those ML algorithms is applied to predict the location of the optical receiver. By using extensive computer simulations, we have demonstrated that the execution time required by certain dual-function algorithms to determine indoor positioning is decreased after area division and noise reduction have been applied. In the best case, the proposed solution took 78.26% less time and provided a 52.55% improvement in positioning accuracy.

Indoor Positioning Technology of Visible Light Communication Based on CDMA Modulation

2016 ◽  
Vol 36 (11) ◽  
pp. 1106006 ◽  
Author(s):  
关伟鹏 Guan Weipeng ◽  
吴玉香 Wu Yuxiang ◽  
文尚胜 Wen Shangsheng ◽  
陈颖聪 Chen Yingcong ◽  
陈昊 Chen Hao
Keyword(s):  
Visible Light ◽  
Visible Light Communication ◽  
Indoor Positioning

Indoor positioning modeling by visible light communication and imaging

2014 ◽  
Vol 12 (5) ◽  
pp. 052201-52204 ◽  
Author(s):  
Jinguo Quan Jinguo Quan ◽  
Bo Bai Bo Bai ◽  
Shuang Jin Shuang Jin ◽  
Yan Zhang Yan Zhang
Keyword(s):  
Visible Light ◽  
Visible Light Communication ◽  
Indoor Positioning

Indoor Positioning Based on Visible Light Communication

2019 ◽  
Vol 52 (2) ◽  
pp. 1-36 ◽  
Author(s):  
Milad Afzalan ◽  
Farrokh Jazizadeh
Keyword(s):  
Visible Light ◽  
Visible Light Communication ◽  
Indoor Positioning
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