Information and communication technologies enable optoelectronic cooperative vehicular systems with bi-directional communication, where vehicles communicate with other vehicles, road infrastructures, traffic lights, and vulnerable road users. We use the concept of request/response for the management of a trajectory in a two-way-two-way traffic lights controlled crossroad, using visible-light communication (VLC). The connected vehicles receive information from the network (Infrastructure to Vehicle, I2V), interact with each other (Vehicle to Vehicle, V2V) and with the infrastructure (Vehicle to Infrastructure, V2I), using a request distance and pose estimation concept. In parallel, an intersection manager (IM) coordinates the crossroad and interacts with the vehicles (I2V) using the response distance and the pose estimation concepts. The communication is performed through VLC using the street lamps and the traffic signaling, to broadcast the information. Data are encoded, modulated, and converted into light signals emitted by the transmitters. Tetra-chromatic white sources are used, providing a different data channel for each chip. As receivers and decoders, SiC wavelength division multiplexer (WDM) devices, with light filtering properties, are considered. A simulated vehicle-to-everything (V2X) traffic scenario is presented, and a generic model of cooperative transmission is established. The primary objective is to control the arrival of vehicles to the intersection and schedule them to cross over at time instants that minimize delays. A phasing traffic flow is developed as a proof of concept (PoC). The simulated/experimental results confirm the cooperative VLC architecture. Results show that the communication between connected cars is optimized using a request/response concept and that pose analysis is an important issue to control driver’s behavior in a crossroad. The block diagram conveys that the vehicle’s behavior (successive poses) is influenced by the maneuver permission, by the I2V messages and also by the intersection redesigned layout and presence of other vehicles. An increase in the traffic throughput with least dependency on infrastructure is achieved.

中文翻译：

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协作车辆系统：通过可见光进行十字路口管理

信息和通信技术使光电协作车辆系统具有双向通信功能，车辆可以与其他车辆、道路基础设施、交通灯和弱势道路使用者进行通信。我们使用请求/响应的概念来管理双向双向交通灯控制的十字路口中的轨迹，使用可见光通信 (VLC)。连接的车辆从网络（基础设施到车辆，I2V）接收信息，使用请求距离和姿态估计概念相互交互（车辆到车辆，V2V）并与基础设施（车辆到基础设施，V2I）交互。同时，交叉路口管理器 (IM) 使用响应距离和姿态估计概念协调十字路口并与车辆 (I2V) 交互。使用路灯和交通信号通过VLC进行通信，以广播信息。数据被编码、调制并转换为发射器发出的光信号。使用四色白源，为每个芯片提供不同的数据通道。作为接收器和解码器，考虑了具有滤光特性的 SiC 波分复用器 (WDM) 设备。提出了一个模拟的车对一切 (V2X) 交通场景，并建立了协同传输的通用模型。主要目标是控制车辆到达交叉路口，并安排它们在尽量减少延误的时间点过马路。定相交通流是作为概念证明 (PoC) 开发的。模拟/实验结果证实了协作 VLC 架构。结果表明，联网汽车之间的通信使用请求/响应概念进行了优化，姿态分析是控制十字路口驾驶员行为的重要问题。该框图表明车辆的行为（连续姿势）受机动许可、I2V 消息以及交叉路口重新设计的布局和其他车辆的存在的影响。实现了对基础设施依赖性最小的业务吞吐量的增加。通过 I2V 消息以及交叉路口重新设计的布局和其他车辆的存在。实现了对基础设施依赖性最小的业务吞吐量的增加。通过 I2V 消息以及交叉路口重新设计的布局和其他车辆的存在。实现了对基础设施依赖性最小的业务吞吐量的增加。