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Investigating the angular distortion impact on vehicular optical camera communication (OCC) systems
Optics Express
|June 11, 2024
Summary
Angular distortions in vehicular optical camera communication (OCC) reduce system throughput. This study models these distortions using pixel values, validating with simulations and experiments to improve vehicular optical wireless communication (OWC).
Area of Science:
- Optical Wireless Communication
- Vehicular Networks
- Image Processing
Background:
- Optical Camera Communication (OCC) is a promising technology for vehicular networks.
- Vehicle mobility causes angular distortions, degrading channel gain and system throughput.
- Previous research has not comprehensively analyzed these distortions based on pixel values.
Purpose of the Study:
- To develop a pixel value-based model for vehicular OCC systems considering angular distortions.
- To analyze the impact of common offset and rotation angles on system performance.
- To validate the model using simulations and experimental data.
Main Methods:
- Developed a vehicular OCC system model incorporating geometric and radiometric aspects.
- Integrated MATLAB simulations with an experimental testbed for validation.
- Investigated impacts on pixel values, imaging location, and communication metrics for single snapshots and statistical driving scenarios.
Main Results:
- Quantified the effects of angular distortions on maximum pixel value and imaging location.
- Demonstrated the correlation between angular distortion types and communication performance degradation.
- Provided statistical analysis of distortion influences across different driving scenarios.
Conclusions:
- The developed model accurately characterizes angular distortions in vehicular OCC.
- Understanding these distortions is crucial for mitigating mobility-induced performance limitations.
- This research provides a foundation for addressing mobility challenges in vehicular OCC systems.
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