Guifa WANG, Mengyue GUO, Jiamei GU, Min TANG, Zhengjun WEI, Jindong WANG, Shentao WANG. Low Power Consumption Visible Light Communication Technology Based on Bilevel Pulse Width Modulation[J]. Acta Photonica Sinica, 2021, 50(5): 139
- Acta Photonica Sinica
- Vol. 50, Issue 5, 139 (2021)
Fig. 1. Connection diagram of LED drive circuit and LED
Fig. 2. Current flow chart when driving signal jumps
Fig. 3. Relationship between the ratio of additional energy consumption tototal energy released by junction capacitance and R O ![]()
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Fig. 4. Schematic diagram of bilevel pulse width modulation
Fig. 5. The additional power consumption of different modulation methods varies with R O ![]()
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Fig. 6. The additional power consumption of different modulation methods varies with frequency under different conditions
Fig. 7. Normalized bandwidth of different modulation methods
Fig. 8. Slot error rate of different modulation methods
Fig. 9. Packet error rate of different modulation methods
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Table 1. Bandwidth requirements of different modulation methods
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