Research on UAV Networking Technology for High-speed Railway Emergency Communication

The rapid construction of high-speed railway has brought great convenience to people's lives. However, in the case of emergencies such as natural disasters and network interruptions, it is urgent to quickly build emergency communication network to ensure the safety and reliability of railway communication. With the continuous improvement of the performance of unmanned aerial vehicle(UAV) network technology in terms of networking flexibility and communication reliability, it has been increasingly applied to the emergency communication. Based on this, we propose an emergency communication strategy to provide signal services by means of UAVs in case of communication signal failure of high-speed railway. In addition, the capacity of the relay UAV has been fully considered, so we propose an improved DSR routing protocol which chooses a better network route between the UAV providing signal services and the remote base stations. The high-speed railway emergency communication models of different scenarios are simulated by the platform of MATLAB GUI and we analyze the values of RSRP and SINR to evaluate the effectiveness and reliability of the proposed emergency communication networking scheme. The experimental results show that the proposed scheme meets the needs of emergency communication for high-speed railway.