超出50 Gbps的100米可见光激光通信单发射器多接收器系统使用三分支神经网络
Optics express
|August 13, 2025
概括
这项研究引入了一种使用RGB激光二极管的新型可见光激光通信系统,在100米的距离上实现51.05 Gbps. 该系统即使在大气动荡下也能实现高速,可靠的数据传输,为未来的6G网络铺平了道路.
科学领域:
- 光电和通信领域的光电子和通信领域.
- 自由空间光学通信
背景情况:
- 传统的电磁频谱面临6G需求的限制.
- 可见光通信 (VLC) 提供了一种高速,具有成本效益的替代方案.
- 长途VLC受到大气流和非线性扭曲的阻碍.
研究的目的:
- 为长途应用开发一个强大的可见光激光通信 (VLLC) 系统.
- 在VLC中克服大气动荡所带来的挑战.
- 在自由空间的VLLC系统中实现高数据速率.
主要方法:
- 一个新的单发射器多接收器VLLC系统使用红色,绿色和蓝色 (RGB) 激光二极管.
- 实现时间域混合的哈夫曼编码 (TDHHC) 和三分支神经网络 (TBNN) 技术.
- 在不同的流条件下进行100米自由空间传输实验.
主要成果:
- 在没有流的情况下达到51.05 Gbps,在强流的情况下达到46.5 Gbps.
- 保持比特错误率 (BER) 在3.8E-3值 (7%的HD-FEC标准) 下.
- 证明了迄今为止100米三色VLLC系统的最高数据速率.
结论:
- 拟议的RGB VLLC系统有效地减轻了流和非线性扭曲.
- 结合TDHHC和TBNN,可以实现高速,可靠的远距离可见光通信.
- 这项技术代表了朝着6G通信能力的重大进步.
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