Model of Train Residence Time within GSM-R Cell in Section of Passenger Dedicated Line

In order to investigate the essential parameters in a GSM-R (global system for mobile communication for railway) system, such as train channel occupation time and train handover rate, a new distribution model of train residence time within a GSM-R cell in SPDL (section of passenger dedicated line) was established. This model is based on the hypotheses that path length and train's average speed within the GSM-R cell in SPDL follow uniform distributions, the former is deduced from the hypothesis that the GSM-R cell coverage submits a uniform distribution. From the above hypotheses, the theoretical and simulation results were obtained. The research results show that when the radius of a GSM-R cell in SPDL is between 3 to 8 km, the theoretical and simulation results of the distribution of train residence time within the GSM-R cell agree well.