Table 1: Parameters of the measurement setup.

ParameterValue

Central frequency2.4 GHz
Bandwidth40 MHz,
Transmitter power20 dBm
1 Tx and 1 Rx
Antenna pattern and gainTx: directional antenna with 17 dBi
Rx: Onmidirectional antenna with 7 dBi
Tx height30 m
Rx height1.2 m
Test signal length12.8  s
The minimum distance between Tx and railway10 m
The penetration loss of the window 12.4 dB
The speed of HSR train295 km/h