基于CFMO-OFDM的VLC系统的高动态范围调光控制,使用集成直流方案
Optics letters
|December 24, 2024
概括
这项研究引入了一种用于可见光通信 (VLC) 的新调光控制,使用光谱高效的无剪切多层光学直角频率分割复合 (CFMO-OFDM). 这种新的方法提高了基于LED的系统的调光范围,灵活性和性能.
科学领域:
- 光学通信是指光学通信.
- 信号处理 信号处理
- 固态照明 固态照明
背景情况:
- 可见光通信 (VLC) 系统利用发光二极管 (LED) 进行同时照明和数据传输.
- 灵活和节能的照明控制对于现代VLC应用至关重要.
- 基于OFDM的VLC系统的现有调光方法在动态范围和复杂性方面面临限制.
研究的目的:
- 为基于光谱高效无剪切多层光学直角频率分割多重复合 (CFMO-OFDM) 的VLC系统提出一种新的调光控制方案.
- 为了实现高动态范围的LED调光控制,同时保持通信性能.
- 与现有方法相比,提高灵活性和减少实施复杂性.
主要方法:
- 为CFMO-OFDM VLC系统提出了一个新的调光控制方案.
- 时间域CFMO-OFDM信号根据频域子载波分布进行分组.
- 定期分组直流 (DC) 信号灵活地添加到CFMO-OFDM信号中,用于调光控制.
主要成果:
- 与经典不对称的混合光学OFDM (AHO-OFDM) 和基于DC偏差的调光方法相比,拟议的方案显示了更高的调光范围.
- 实现了优越的比特错误率 (BER) 性能.
- 该方案提供了更好的灵活性和更低的实施复杂性.
结论:
- 新的调光控制方案有效地提高了CFMO-OFDM VLC系统的调光能力.
- 这种方法为灵活和节能的LED照明提供了一个有前途的解决方案,具有集成通信.
- 拟议的方法在调光范围,灵活性,复杂性和BER方面优于现有技术.
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