Performance evaluation of a triangular pyramidal fly-eye diversity detector for optical wireless communications
Performance evaluation of a triangular pyramidal fly-eye diversity detector for optical wireless communications
复制标题
用于光无线通信的三角锥复眼分集检测器的性能评估
DOI：
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发表时间：
2003
影响因子：
11.2
通讯作者：
J. Elmirghani
中科院分区：
文献类型：
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作者：
A. Al;J. Elmirghani
背景噪声和多径传播是室内光无线链路的主要损伤。它们会在接收到的光信号中引入严重的失真，并且会降低系统性能。光无线系统的性能进行了调查两种配置：一个混合系统，和一个扩散系统与一个单一的检测器和一个三角金字塔复眼分集接收器（PFDR）。两个系统，采用PFDR天线，在不同的视野（FOV）的原始结果。设计目标是在系统工作于背景噪声和多径色散的约束下，减小信号扩展的影响，提高信噪比。结果表明，通过PFDR视场优化，可以减小方向性背景干扰，改善接收脉冲波形。
Background noise and multipath propagation are the major impairments in indoor optical wireless links. They can introduce heavy distortion in the received optical signal and can degrade the system performance. An investigation into the optical wireless system performance has been carried out for two configurations: a hybrid system, and a diffuse system with a single detector and a triangular pyramidal fly-eye diversity receiver (PFDR). Original results for both systems that employ a PFDR antenna, under different fields of view (FOVs), are presented. The design goal is to reduce the effect of signal spread and improve the signal-to-noise ratio when the system operates under the constraints of background noise and multipath dispersion. It is demonstrated that through PFDR FOV optimization the directional background interference can be reduced and the received pulse shape improved.