A Novel Geometry-Based Semi-Deterministic Wideband Channel Model for Hyperloop Communications

Hyperloop, a novel rail transportation technology, can run at a speed of more than 1000 km/h in the vacuum tube scenario. To guarantee the safe and reliable operation of the Hyperloop communication system, a new channel model considering the line-of-sight (LoS), reflection, and scattering components is proposed to investigate the channel characteristics of the Hyperloop scenarios. Based on the geometric relationship and physical propagation mechanism, the expression of channel gain is derived and the channel impulse response (CIR) is calculated. Then, the Doppler spectrum and K factor are analyzed. The simulation results show the wireless channel characteristics in the Hyperloop scenarios and provide useful insights for future Hyperloop communication systems.