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Development of IEEE802.15.7 based ITS services using low cost embedded systems

机译：使用低成本嵌入式系统开发基于IEEE802.15.7的ITS服务

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Visible Light Communication (VLC) is the technique adopting electromagnetic frequencies in the visible spectrum for free space optical communications. Although its practical use is still at early stages, in the last few years research activities have been exploring different solutions to achieve high data rates and reliable links using common LEDs and light sensors. VLC can be used in a variety of applications or end user segments, exploiting already existing lighting infrastructures and thus making VLC a cheap communication system. Among these applications, a prominent case study is that of ITS (Intelligent Transportation Systems), where car headlamps and traffic lights can be used to communicate and fulfill the requirements of road safety applications. This option turns to be particularly effective in short range direct communications to exploit its line-of-sight feature and overcome the issues related to the isotropic nature of radio waves. Recently IEEE undertook standardization activities on VLC, resulting in the IEEE802.15.7 standard, which disciplines PHY and MAC layer services for Visible-light Personal Area Networks (VPANs). This paper shows the development of a VLC prototype based on IEEE802.15.7 standard, using low cost embedded systems as the target platforms. The aim is to get a device suitable to be integrated in existing PANs, or to cooperate with other wireless networks to provide communication services in complex architectures like ITS.
机译：可见光通信（VLC）是一种采用可见光谱中的电磁频率进行自由空间光通信的技术。尽管它的实际应用仍处于早期阶段，但在最近几年中，研究活动一直在探索不同的解决方案，以使用普通的LED和光传感器来实现高数据速率和可靠的链接。 VLC可用于各种应用程序或最终用户细分中，可以利用已经存在的照明基础设施，从而使VLC成为便宜的通信系统。在这些应用中，一个突出的案例研究是ITS（智能交通系统），其中汽车前照灯和交通信号灯可用于通信并满足道路安全应用的要求。此选项在短距离直接通信中特别有效，以利用其视线功能并克服与无线电波各向同性有关的问题。最近，IEEE在VLC上进行了标准化活动，形成了IEEE802.15.7标准，该标准规范了可见光个人局域网（VPAN）的PHY和MAC层服务。本文展示了基于IEEE802.15.7标准的VLC原型的开发，该原型使用低成本嵌入式系统作为目标平台。目的是获得一种适合集成在现有PAN中或与其他无线网络合作以在ITS之类的复杂体系结构中提供通信服务的设备。

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