在4.32 Tbit/s的IM/DD传输中使用OAM模式分割复杂化与低复杂度的自适应网络基于模糊推理系统非线性等效器
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|February 1, 2024
概括
一种新型的低复杂度适应型基于网络的模糊推理系统 (LANFIS) 均衡器有效地弥补了高速轨道角动量 (OAM) 模式分割复杂化 (MDM) 系统中的非线性损伤. 这种先进的等分器显著提高了接收器的灵敏度,并减少了光纤通信的计算复杂性.
科学领域:
- 光学通信是指光学通信.
- 信号处理 信号处理
- 信息理论 信息理论
背景情况:
- 高速光纤通信系统,特别是那些采用轨道角动量 (OAM) 模式划分多重复合 (MDM) 的系统,由于随机非线性损害而面临显著的性能限制.
- 强度调制直接检测 (IM/DD) 系统被广泛使用,但容易受到这些扭曲,需要先进的补偿技术.
研究的目的:
- 为WDM-OAM-MDM IM/DD系统引入和评估一种低复杂度的基于自适应网络的模糊推理系统 (LANFIS) 非线性等效器.
- 为了证明LANFIS等分器能够减轻随机非线性损害并提高传输性能.
主要方法:
- 拟议的LANFIS均衡器调整了扭曲脉冲振幅调制 (PAM) 符号的概率分布函数 (PDF),使其与频道的统计特征相匹配.
- 均衡器在一个有三个OAM模式和15个波长分割多重 (WDM) 频道的系统中测试,波长为1550.12 nm.
主要成果:
- 与Volterra和卷积神经网络 (CNN) 均等器相比,LANFIS均等器实现了更高的性能,显示接收器灵敏度的提高高达2dB.
- 观察到显著的复杂性降低:67%与Volterra相比,74%与CNN相比,99.9%与自适应神经模糊推理系统 (ANFIS) 相比.
结论:
- 在高速WDM-OAM-MDM系统中,LANFIS均衡器有效地弥补了随机非线性损害.
- 它的高性能和低计算复杂性的结合使其成为未来光通信系统的非常有前途的解决方案.
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