概括
一个新的传输方案通过在三个时间中传输信号组件来减轻可见光通信 (VLC) 系统中的剪切噪声. 这种方法提高了对直角频率分割复杂化 (OFDM) 系统的现有方案的性能.
科学领域:
- 光学通信是指光学通信.
- 信号处理 信号处理
- 无线网络 无线网络 无线网络
背景情况:
- 发光二极管 (LED) 的非线性引入了基于直角频率分割多重复合 (OFDM) 的可见光通信 (VLC) 系统中的剪切噪声.
- 这种剪切噪音显著降低了VLC系统的性能,影响了数据传输的可靠性.
研究的目的:
- 提出一种新的传输方案,以减轻基于OFDM的VLC系统中的剪切噪声.
- 通过减少剪切噪声和提高信号质量来提高VLC系统的性能.
主要方法:
- 引入了三段时间的传输方案.
- 该方案将剪切噪声的信号,剪切信号以及剪切噪声的绝对值传输到这些槽.
- 接收器通过解码剪切噪声信号并使用它们来恢复传输信号来重建原始信号.
主要成果:
- 拟议的方案有效地通过减轻剪切噪声来重建原始传输信号.
- 与现有的多槽传输方案相比,模拟结果显示性能优越.
- 在峰值到平均功率比率 (PAPR) 降低和比特错误率 (BER) 性能方面都观察到显著的改进.
结论:
- 新的三时槽传输方案有效地减轻了基于OFDM的VLC中的LED非线性诱导的剪切噪声.
- 提出的方法为提高可见光通信系统的可靠性和效率提供了一个有希望的解决方案.
- 这种方法为改进VLC中的PAPR和BER指标提供了一个实际的策略.
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