Abstract:
The recent development of High-Speed Trains (HST) operations requires real-time 
information transfer, high network capacity, and reliable communication for train 
signalling and control purposes.  Rail operators face challenges as the high-speed 
railroad traffic grows. In a high-speed driving profile, the communication must be able to 
overcome fast handover, large Doppler shift, high penetration losses, limited visibility in 
tunnels, and the harsh electromagnetic environment. Global System for Mobile 
Communications for Railway (GSM-R) is still a standard-bearer for railway signalling 
communications. The link capacity and coverage prediction of the predefined Base 
Transceiver Station (BTS) locations are simulated using the Radio Planner RF planning 
tool and Matlab®. The terrain map and the signal levels along the railway corridor are 
observed. The analysis of the GSM-R for a fast-moving train is performed. Signal level 
coverage prediction, Doppler-shift effect and the received carrier frequencies due to 
Doppler shift along Dar–Pugu stations have been presented. The critical sites (locations) 
with weak signals of the first three BTSs have been identified. It is also observed that the 
Doppler effect may limit the proposed speed.