相关实验视频
Updated: Jun 24, 2025

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Quasi-light Storage for Optical Data Packets
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实验演示灵活的信息速率PON超出100 Gb/s与速度兼容的LDPC代码
Optics express
|June 11, 2024
概括
速率兼容的低密度平价检查 (RC-LDPC) 代码提高了连贯的被动光学网络 (PON) 中的灵活数据速率. 优化的RC-LDPC代码证明了未来高速PON系统的有效性能和可行性.
科学领域:
- 光学通信是指光学通信.
- 编码理论编码理论
背景情况:
- 被动光学网络 (PON) 需要灵活的数据速率来满足不断变化的网络需求.
- 16方格振幅调制 (16QAM) 和连贯检测是高速光学系统的关键技术.
研究的目的:
- 调查16QAM连贯PON的速度兼容的低密度平价检查 (RC-LDPC) 代码.
- 优化RC-LDPC代码构建,并评估低复杂度解码算法.
主要方法:
- 基于IEEE 802.3ca标准构建的RC-LDPC代码,具有固定和可变信息位长.
- 应用基于原型的外部信息传输 (PEXIT) 来优化穿孔.
- 评估了四个低复杂度的LDPC解码算法.
主要成果:
- 构建的RC-LDPC代码在各种代码率中在布区域表现良好.
- 在25 GBaud 16QAM连贯的PON中进行实验验证,证实了代码的有效性.
- 观察到最大4.8dB的接收器灵敏度差异,验证了该方法.
结论:
- 构建RC-LDPC代码的拟议方法对于高速灵活一致的PON是可行的.
- 优化的穿孔和低复杂度解码算法平衡了性能和复杂性.
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