Powering the Internet of Things through Light Communication
Powering the Internet of Things through Light Communication
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DOI：
10.1109/mcom.2019.1800429
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发表时间：
2019-06-01
影响因子：
11.2
通讯作者：
Haas, Harald
中科院分区：
文献类型：
--
作者：
Demirkol, Ilker;Camps-Mur, Daniel;Haas, Harald
正如物联网所设想的那样，需要新颖的解决方案将数十亿设备连接到网络。在本文中，我们建议使用基于现成 LED 的 LiFi 作为室内环境中物联网的推动者。我们推出 LiFi4IoT，该系统除了通信之外，还提供射频 (RF) 物联网网络难以提供的三项主要服务：精确的设备定位；由于可以从光中获取能量，因此可以提供电力；以及由于可见光的传播特性而产生的固有安全性。我们分析了物联网在室内场景中的应用空间，并提出了一种 LiFi4IoT 接入点（AP），它可以与具有不同类型探测器（例如 CMOS 摄像头传感器、PD 和太阳能电池）的物联网设备同时通信。基于这些技术的能力，我们定义了三种能源自给自足的物联网“微尘”，并分析了它们的可行性。最后，我们确定了实现 LiFi4IoT 愿景的主要研究方向，并为其中几个提供了初步结果。
Novel solutions are required to connect billions of devices to the network as envisioned by the IoT. In this article we propose to use LiFi, which is based on off-the-shelf LEDs, as an enabler for the IoT in indoor environments. We present LiFi4IoT, a system which, in addition to communication, provides three main services that the radio frequency (RF) IoT networks struggle to offer: precise device positioning; the possibility of delivering power, since energy can be harvested from light; and inherent security due to the propagation properties of visible light. We analyze the application space of IoT in indoor scenarios, and propose a LiFi4IoT access point (AP) that communicates simultaneously with IoT devices featuring different types of detectors, such as CMOS camera sensors, PDs, and solar cells. Based on the capabilities of these technologies, we define three types of energy self-sufficient IoT "motes" and analyze their feasibility. Finally, we identify the main research directions to enable the LiFi4IoT vision and provide preliminary results for several of these.