研究目的
To develop a hybrid-encoding scheme for an integrated OCC/LiFi system using a single multilevel LED for simultaneous data transmission.
研究成果
The proposed hybrid-encoding scheme successfully transmits OCC and LiFi data simultaneously using a single multilevel LED, achieving data rates of 4.2 kbps and 2.75 Mbps for OCC and LiFi, respectively. The BER performance of the ISK scheme is comparable to conventional modulation schemes.
研究不足
The system focuses only on the downlink part, and the uplink path is not considered. The data rate for OCC is limited by the camera's frame rate.
1：Experimental Design and Method Selection:
A hybrid-encoding scheme using a single multilevel LED for simultaneous OCC and LiFi data transmission.
2：Sample Selection and Data Sources:
A Google Pixel-2 camera and PD were used to receive the optical signals.
3：List of Experimental Equipment and Materials:
A rectangular LED, DC power supply, Arduino UNO, metal-oxide-semiconductor field-effect-transistors, Google Pixel-2 camera, OpenCV320 libraries, oscilloscope.
4：Experimental Procedures and Operational Workflow:
The LED flickers in two different power levels to create sequences for OCC and LiFi data transmission. The camera and PD receive and interpret these sequences.
5：Data Analysis Methods:
BER performance was measured at different transmission spans for LiFi and OCC.
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