Institute of Transportation, MOTC

       With the development of Internet, information and communication technologies, wireless communication has made people's lives more diverse. Hence, many car manufacturers have invested heavily in funds and technology to develop a platform in which vehicles can transfer driving information to each other. This platform can be called the Internet of Vehicles (IoV). There are many interconnections among cars, roadside units, as well as other devices in the IoV. One of the possible devices to help the vehicle network operate more smoothly is unmanned aerial vehicle. This research uses software defined radio (SDR) technology to replace traditional hardware-based communication modules. The major advantage of SDR is its high flexibility, i.e. some important communication parameters can be easily changed by software. The study uses an unmanned aerial vehicle carrying a Raspberry Pi, which equipped with an USRP (universal software radio peripheral) to communicate with ground vehicles. The Raspberry Pi acts as the core device to capture the flight information of the unmanned flight vehicle. This flight information in general come out from flight controller called Pixhawk. The collected information will be uploaded to the cloud through the 4G mobile network. This feature can allow authorized users to access the location of the unmanned vehicle via the cloud in the Internet. Similarly, some urgent information can be broadcast to the vehicles in the ground from a monitoring center via the cloud platform. The urgent information is radiated to vehicles by the USRP in the UAV. In this research, GNU Radio is used as a software development platform. The software-defined radio architecture is used to design the communication system between the vehicle-to-vehicle and the vehicle-to-UAV. Finally, this research implements a prototype of vehicle communication system, including in-vehicle, roadside, and aerial space units (UAV).