To overcome the inherent bandwidth limitation of non-line-of-sight (NLOS) ultraviolet communication (UVC) channel, a novel space division multiplexing (SDM) framework based on non-coplanar rotation angle is established. The influence of SDM structure parameters on inter-channel interference (ICI) is studied to obtain the optimal antenna configuration. And a Gaussian approximate distribution (GAD) signal detection model is presented, which simplifies the calculation of the Bit error rate (BER) of the Photon multiplier tube (PMT) reception and is suitable for complex ICI analysis. Furthermore, a low ICI scheme based on the relationship between BER and the interference factor is proposed to increase the data transmission rate or reduce the alignment configuration. As a result, the maximum data rate increases to 34 Mbps, or the alignment demand decreases by 33.33% at most. Moreover, these analysis results and techniques can be applied to other NLOS scattering optical wireless communication systems.

中文翻译：

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用于短距离非视距紫外光传输的高数据传输速率空分复用


为了克服非视距（NLOS）紫外线通信（UVC）信道固有的带宽限制，建立了一种基于非共面旋转角的新型空分复用（SDM）框架。研究SDM结构参数对信道间干扰（ICI）的影响，以获得最佳天线配置。提出了高斯近似分布(GAD)信号检测模型，简化了光子倍增管(PMT)接收误码率(BER)的计算，适合复杂的ICI分析。此外，提出了一种基于BER和干扰因子之间的关系的低ICI方案，以提高数据传输速率或减少对准配置。结果，最大数据速率增加到34 Mbps，或者对齐需求最多减少33.33%。此外，这些分析结果和技术可以应用于其他非视距散射光无线通信系统。