Integration of Radar-based Communication in Heterogeneous Vehicular Networks for Cooperatively Interacting Cars (RADCOM-HETNET)

协同交互车辆需要交通参与者之间的相互协调和通信，例如，用于实现协同感知和协同轨迹与机动规划。作为基础，IEEE 802.11p通信协议已经被标准化。然而，几个应用的基本问题是无线电信道（或甚至多个无线电信道）对于多个应用的共享使用。文献中已经表明，将共享无线电信道用于安全相关和实时应用是一个有问题的问题。我们解决这个问题，在我们的建议中使用队列和交叉口管理作为示例应用程序。因此，需要新的方法来实现车辆之间的时间关键的协作交互依赖于使用安全信道跨多个车辆的传感器信息的实时交换。此外，这种沟通渠道需要以技术上有吸引力的方式实现。在拟议的研究项目RADCOM-HETNET的范围内，我们通过使用汽车雷达传感器来解决这一挑战，该传感器可用于当今车辆的同时测距和通信（RADCOM）。我们特别关注支持实时通信的可靠通道的实现。在这里，我们使用在77-81 GHz汽车雷达频带中工作的新型扩频雷达系统的特性。从技术角度来看，这些雷达系统对汽车应用非常有吸引力，并提供了同步数据传输的潜力。在跨学科和综合方法的框架下，我们研究了这样一个RADCOM系统的通信理论和技术实现，它集成到一个异构的车辆网络（HETNET），以及基于RADCOM-HETNET方法的应用场景排队和交叉口管理的车辆的协作交互。我们的新型异构方法允许利用互补通信技术之间的协同作用，从而有效地解决网络监控，用户同步和车辆协调的挑战。在拟议的研究项目中，我们首先实现整体，模块化和集成的仿真环境，允许不断评估每个模块的影响，甚至到汽车雷达天线和电磁传播对整个系统的影响，以及在项目持续期间的排队和交叉口管理的所解决的应用。基于此仿真环境，我们然后调查和研究所需的子模块，使RADCOM，其集成到一个异构的车辆间通信网络，并实现新的合作车辆交互的基础上RADCOM-HETNET。

Cooperative interacting vehicles require mutual coordination and communication between traffic participants, e.g., for realizing cooperative awareness and cooperative trajectory and maneuver planning. As a basis, the IEEE 802.11p communication protocol has been standardized. A fundamental problem for several applications, however, is the shared use of the radio channel (or even multiple radio channels) for a multitude of applications. It has been shown in the literature that the use of shared radio channels for safety-relevant and real-time applications is a problematic issue. We address this problem using platooning and intersection management as sample applications in our proposal. In consequence, new methods are required for realizing time-critical cooperative interaction between vehicles relying on the real-time exchange of sensor information across several vehicles using a secure channel. Furthermore, this communication channel needs to be realized in a technologically attractive way. In the scope of the proposed research project RADCOM-HETNET we address this challenge by using automotive radar sensors as available in todays vehicles for simultaneous ranging and communication (RADCOM). We particularly focus on the realization of a reliable channel that supports real-time communication. Here, we use the properties of novel spread-spectrum radar systems operating in the 77-81 GHz automotive radar frequency bands. These radar systems are very attractive for automotive applications from a technological viewpoint and offer the potential for simultaneous data transmission. In the framework of an interdisciplinary and integrative approach, we examine the communication-theoretic and technological realization of such a RADCOM system, its integration into a heterogeneous vehicular network (HETNET), as well as the cooperative interaction of vehicles based on the RADCOM-HETNET approach for the application scenarios platooning and intersection management. Our novel heterogeneous approach allows to exploit synergies between the complementary communication technologies and hence to efficiently address the challenges of network monitoring, user synchronization, and vehicle coordination.In the proposed research project, we start by realizing a holistic, modular, and integrative simulation environment, allowing to continuously evaluating the influence of each module, even down to the influence of the automotive radar antennas and electromagnetic propagation, onto the overall system and the addressed applications platooning and intersection management during the project duration. Based on this simulation environment, we then investigate and research the sub-modules necessary for enabling RADCOM, for its integration into a heterogeneous inter-vehicle communication network, and for implementing novel cooperative vehicular interaction based on RADCOM-HETNETs.