论文标题
WOV：基于WiFi的VLC测试床
WoV: WiFi-based VLC testbed
论文作者
论文摘要
我们提供了一个完整的可见光通信（VLC）收发器系统，该收发器系统由低成本商业货架（COTS）组件组成。特别是，我们表明可以使用COTS IEEE 802.11N（WIFI）设备，以便将无线电频率（RF）WiFi的物理和数据链路层（即2.4 GHz）重复用于VLC。此外，由于WiFi与Linux系统完全集成在一起，因此可以在VLC相关的实验中使用和测试，从网络到运输层和应用层进行较高的协议。我们的方法具有一个优势，即VLC实验者可以完全专注于与VLC相关的低级方面，例如新型VLC前端的设计，例如LED驱动器，镜头和光电探测器，并以端到端的方式直接测试其对完整网络协议堆栈的影响，并使用自适应视频流（如自适应视频流）进行实际应用。我们使用我们的原型展示了单向VLC传输的性能，从实验中提出了第一个结果。在这里，我们分析引入的扭曲以及不同MC的帧误差率与最大通信距离之间的信号强度之间的关系。实验结果表明，在短范围内，数据速率最高可达150 Mbps。
We present a complete Visible Light Communications (VLC) transceiver system consisting of low-cost Commercial-Off-The-Shelf (COTS) components. In particular, we show that COTS IEEE 802.11n (WiFi) devices can be used so that the physical and data link layers of radio frequency (RF) WiFi, i.e. 2.4 GHz, are reused for VLC. Moreover, as WiFi is fully integrated with the Linux system, higher protocols from network to transport and application layer can be used and tested in VLC-related experiments. Our approach has the advantage that a VLC experimenter can fully focus on VLC-related low-level aspects like the design of novel VLC front-ends, e.g. LED drivers, lenses, and photodetectors and test their impact directly on the full network protocol stack in an end-to-end manner with real applications like adaptive video streaming. We present first results from experiments using our prototype showing the performance of unidirectional VLC transmission. Here we analyze the distortions introduced as well as the relationship between signal strength on frame error rate for different MCS and the maximum communication distance. Experimental results reveal that a data rate of up to 150 Mbps is possible over short ranges.
