在多通道强度调制和直接检测灵活收发器中分析峰值-平均功率比特征,部署反向快瑞转换/快瑞转换基于处理的灵活收发器
Lin Chen1, Xiaoyu Huang1, Wei Jin2
1College of Electronics and Information Engineering, Shanghai University of Electric Power, Shanghai 200090, China.
Sensors (Basel, Switzerland)
|December 23, 2023
概括
灵活的光学收发器使用反向快速里叶变换/快速里叶变换 (IFFT/FFT) 聚合面临高峰到平均功率比 (PAPRs). 最后的IFFT大小,而不是通道数量,决定了PAPR,允许通过剪切有效减少.
科学领域:
- 光学通信是指光学通信的应用.
- 信号处理 信号处理
- 网络工程 网络工程
背景情况:
- 灵活的光学收发器可以提高网络的适应性.
- 这些系统中的多通道聚合产生具有高峰值到平均功率比率 (PAPRs) 的信号.
- 解决高PAPR对于收发器性能至关重要.
研究的目的:
- 研究灵活收发器中的PAPR特性.
- 评估剪切技术在减少PAPR方面的有效性.
- 确定影响光网络中PAPR的关键因素.
主要方法:
- 在背对背和20公里强度调制和直接检测 (IMDD) 系统中探索PAPR.
- 对用于减少PAPR的传统剪切技术进行数值调查.
- 分析IFFT大小,频道数和调制格式对PAPR的影响.
主要成果:
- 最后一个反向快速里埃转换 (IFFT) 操作的大小是PAPR的主要决定因素.
- PAPR在很大程度上独立于频道数和调制格式.
- 可以确定一个最佳的剪切比率,独立于通道数量,用于减少PAPR.
结论:
- 最后一个IFFT大小是灵活收发器中管理PAPR的关键参数.
- 剪切技术为减少PAPR提供了有效的解决方案.
- 优化的剪切策略可最大限度地减少产能损失,并增加频道数量.
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