Conformal VLC Receivers with Photodetector Arrays: Design, Analysis and Prototype
Conformal VLC Receivers with Photodetector Arrays: Design, Analysis and Prototype
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DOI：
10.1109/icc.2019.8761817
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发表时间：
2019-05
期刊：
影响因子：
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通讯作者：
Pooya Nabavi;M. Yuksel
中科院分区：
文献类型：
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作者：
Pooya Nabavi;M. Yuksel
为了使可见光通信（VLC）的移动的接收器，我们设计和原型的宽视场（FOV）的光学接收器与现成的组件和形式，是共形的接收器的表面。VLC系统使用高效率的光发射器，高亮度（1米7645勒克斯）低功率（36 W）白色LED面板也提供适当的照明。为了克服VLC接收机的高接收角和结构振动带来的时变符号间干扰（ISI）的不利影响，设计并利用了一种最优多符号检测（MSD）算法。与逐符号检测相比，MSD获得了显着的改善，但具有指数时间成本。为了减少MSD的计算量，我们设计了一种自适应的决策反馈仿射投影算法（DF-APA）。DF-APA实现了显着的进一步改善与多项式计算复杂性，允许更快地响应VLC信道动态。我们，最后，在接收器的身体存在强烈的振动测试系统，并显示超过7米的距离20 Mbps的VLC链接。
To enable visible light communication (VLC) for mobile receivers, we design and prototype a wide field-of-view (FOV) optical receiver with off-the-shelf components and in forms that are conformal to the receivers' surface. The VLC system uses high-efficiency optical transmitters with high brightness (7645 Lux in 1 m) low power (36 W) white LED panels which also provide proper lighting. To overcome the detrimental effects of the time-varying inter-symbol interference (ISI) due to the VLC receiver's high acceptance angle and vibration in its structure, we design and utilize an optimal multiple-symbol detection (MSD) algorithm. MSD attains remarkable improvements compared to the symbol-by-symbol detection but with exponential time cost. To decrease the MSD's computing demands, we then design an adaptive Decision Feedback Affine Projection Algorithm (DF-APA). DF-APA attains a notable further improvement with polynomial computation complexity which allows faster response to VLC channel dynamics. We, finally, test the system in presence of intense vibration in the receiver's body and show a 20 Mbps VLC link over 7 m distance.