研究目的
Investigating the performance improvement of VLC systems using a scaling QAM technique that accounts for signal-related noise.
研究成果
The scaling QAM technique significantly reduces BER in VLC systems with signal-related noise, demonstrating a potential for high-speed data transmission up to 3.2Gb/s with BER under 3 × 10?3.
研究不足
The study is limited to DCO-OFDM VLC systems and may not account for all types of signal-related noise sources in different VLC configurations.
1:Experimental Design and Method Selection:
The study involves designing a scaling QAM technique for DCO-OFDM VLC systems to mitigate signal-related noise effects.
2:Sample Selection and Data Sources:
The experiment uses an RGB OFDM-VLC system with LEDs and a photo diode for data transmission and reception.
3:List of Experimental Equipment and Materials:
Includes an arbitrary waveform generator (AWG, Rigol DG5352), Bias-Tee (Tektronix), RGB LEDs, PD (Thorlabs PDA10A2), and a digital serial analyzer (Tektronix DSA 71254C).
4:Experimental Procedures and Operational Workflow:
Signals are generated, combined with a DC-bias, transmitted via LEDs, captured by a PD, and analyzed for BER performance.
5:Data Analysis Methods:
BER performance is evaluated comparing traditional QAM and scaling QAM techniques under various conditions.
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