低PAPR ASE-DMT 使用星座扩展用于光学无线通信
Yue Wu1, Yiding Li2, Baolong Li2
1Changwang School of Honors, Nanjing University of Information Science and Technology, Nanjing 210044, China.
Sensors (Basel, Switzerland)
|August 28, 2025
概括
一个新的低峰到平均功率比率 (PAPR) 增强光谱效率离散多音 (ASE-DMT) 方案减少了光学无线通信中的信号扭曲. 这种进步提高了位误差率,功率效率和光谱效率.
科学领域:
- 光学无线通信 (OWC)
- 数字信号处理
背景情况:
- 增强光谱效率离散多音调 (ASE-DMT) 在OWC中提供高光谱和功率效率.
- 由于ASE-DMT的高峰值与平均功率比率 (PAPR),导致错误传播和性能降低,特别是在连续干扰取消 (SIC) 接收器中.
研究的目的:
- 提出一个新的低PAPR ASE-DMT (LP-ASE-DMT) 方案来缓解PAPR问题.
- 开发一个有效的PAPR抑制算法,降低计算复杂性.
- 设计一个接收器架构,以适应拟议的方案而不会显著增加复杂性.
主要方法:
- 开发了一种渐进的多级星座扩展算法来抑制PAPR.
- 设计了一个具有低复杂度模块操作的专用接收器架构.
- 模拟用于验证LP-ASE-DMT方案的有效性.
主要成果:
- 与传统方法相比,拟议的LP-ASE-DMT方案显著降低了PAPR.
- 该计划表现出对非线性损失的强化稳定性.
- 在比特错误率 (BER),功率效率和光谱效率方面取得了实质性的改进.
结论:
- 在ASE-DMT系统中,LP-ASE-DMT有效抑制PAPR.
- 拟议的方案在OWC中提供了卓越的性能,解决了现有方法的关键局限性.
- LP-ASE-DMT为先进的光学无线通信系统提供了一个有前途的解决方案.
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