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A Survey of Visible-Light-Communication-Based Indoor Positioning Systems
Ruofan Wang1, Guanchong Niu1, Qi Cao1
1Guangzhou Institute, Xidian University, Guangzhou 510530, China.
Sensors (Basel, Switzerland)
|August 29, 2024
Summary
Visible light communication (VLC)-based indoor positioning systems (IPSs) offer a high-accuracy, low-cost alternative to traditional methods. These systems demonstrate potential for precise indoor localization, overcoming GPS limitations.
Area of Science:
- Indoor positioning systems
- Visible light communication (VLC)
- Localization technologies
Background:
- Traditional positioning systems like GPS face significant limitations for indoor environments.
- Visible light communication (VLC) has emerged as a promising alternative for indoor positioning.
- VLC-based IPSs offer high accuracy, low cost, and energy efficiency.
Purpose of the Study:
- To provide a comprehensive review and tutorial-like overview of VLC-based indoor positioning systems (IPSs).
- To compare VLC-IPSs with traditional systems, highlighting limitations.
- To explore optimization strategies and system parameters for enhanced performance.
Main Methods:
- Comparative analysis of various positioning systems.
- Discussion of VLC-based IPS mechanisms, performance metrics, and assumptions.
- Examination of factors like channel modeling, signal processing, and localization algorithms.
- Exploration of optimization strategies including modulation, encoding, power control, and algorithms.
- Analysis of system parameters such as LED placement, receiver sensitivity, and transmit power.
Main Results:
- VLC-based systems achieve localization accuracy within 10 cm in controlled environments.
- Analysis of complexity, operating range, and efficiency based on key factors.
- Demonstration of the impact of system parameters on energy efficiency and accuracy.
Conclusions:
- VLC-based IPSs present a viable and effective solution for indoor positioning.
- Optimization strategies and careful system parameter selection are crucial for maximizing performance.
- This review offers in-depth insights into the potential and challenges of VLC-based IPSs.
Keywords:
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