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Design and Implementation of the MIMO-COOK Scheme Using an Image Sensor for Long-Range Communication
Van Hoa Nguyen1, Minh Duc Thieu1, Huy Nguyen1
1Department of Electronics Engineering, Kookmin University, Seoul 02707, Korea.
Sensors (Basel, Switzerland)
|April 23, 2020
Summary
Researchers are exploring visible light communication to address health concerns associated with radio-frequency technologies. This study enhances the camera on-off keying (COOK) scheme with multiple-input multiple-output (MIMO) for improved data transmission.
Area of Science:
- Wireless Communication
- Optical Communication
- Biomedical Engineering
Background:
- Radio-frequency (RF) technologies are prevalent but pose potential human health risks.
- High-frequency RF signals can adversely affect health if power exceeds safe limits.
- Visible light communication (VLC) is an emerging alternative for data transmission.
Purpose of the Study:
- To propose an enhanced visible light communication scheme.
- To improve upon the existing camera on-off keying (COOK) standard (IEEE 802.15.7-2018).
- To enhance data rate, communication distance, and bit error rate.
Main Methods:
- Integration of multiple-input multiple-output (MIMO) with the COOK scheme.
- Application of matched filter and region of interest techniques.
- Utilizing camera exposure time, focal length control, and channel coding.
Main Results:
- The proposed scheme significantly improves data rate and communication distance.
- Enhanced performance metrics include reduced bit error rate.
- Achieved communication distances of up to 20 meters with low error rates.
Conclusions:
- The enhanced COOK-MIMO scheme offers a promising solution for high-performance visible light communication.
- This approach mitigates health concerns associated with RF transmissions.
- The method provides a robust and efficient alternative for wireless data transmission.
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