Review Article

Wireless Communications in Smart Rail Transportation Systems

Table 1

Quality of service performances of GSM-R system for critical communications.

GSM-R QoS parameter for ETCSRequirement

Connection establishment<8.5 s (95%)
≤10 s (100%)

Transfer Delay (TD)≤0.5 s (99%)

Network Registration Delay (NRD)≤30 s (95%)
≤35 s (99%)
≤40 s (100%)

Connection Loss Rate (CLR)<10−2/h

Transmission Interference (TI)<10−2