研究目的
Investigating the impact of three radiation patterns of LED (Lambertian, Batwing, Elliptical) on the BER performance of 4 × 4 indoor MIMO-VLC system.
研究成果
The study concludes that the BER performance in MIMO-VLC systems is significantly influenced by the LED's radiation pattern and the type of signal (LOS or L-R1). For ceiling-mounted LEDs, Elliptical radiation is more suitable for LOS signals, while Batwing radiation is better for L-R1 signals. For wall-mounted LEDs, Batwing radiation is preferable for LOS signals, and Elliptical radiation is better for L-R1 signals.
研究不足
The study is limited to simulation-based analysis and does not include experimental validation. The impact of higher-order reflections beyond the first reflection is not considered.
1：Experimental Design and Method Selection:
The study involves simulation of BER performance using LOS and LOS plus first reflection (L-R1) signals for ceiling-mounted and wall-mounted LEDs with three different radiation patterns.
2：Sample Selection and Data Sources:
The simulation is conducted in a room of size 5 m × 5 m × 3 m with specific positions for LEDs and receivers.
3：List of Experimental Equipment and Materials:
LEDs with Lambertian, Batwing, and Elliptical radiation patterns, photodetectors, and simulation software.
4：Experimental Procedures and Operational Workflow:
Impulse response and BER are computed for different LED positions and radiation patterns at the centre and corner of the room.
5：Data Analysis Methods:
The analysis involves comparing BER performance across different radiation patterns and signal types (LOS and L-R1).
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