Reliability Analysis of CTCS Based on Two GSM-R Double Layers Networks Structures

Abstract

In CTCS (China Train Control System) level-3 and level-4,GSM-R is the wireless communications system, and it is a platform to transfer security data of train control. As the train control system is safety critical system, once the security data are delayed or lost by GSM-R, an emergency brake will be executed, or even the danger will happen. This paper bases on two different existing GSM-R double layers networks, and establishes the channel and train control system models, then analyzes the relation between the average train number of one cell and the free channel rate and probability of emergency stop. The results show the intercross double layers network can make the CTCS-3 more reliable than co-sited double layers network.

Communication systems of high‐speed railway: A survey

“…It is used for voice calls, data transmission and traffic control. In this system, the communication for drivers and signalers is secure as the coverage of the rail network is thorough, including deep cuttings and tunnels 32 . GSM‐R and GSM system are basically the same but GSM‐R has railway‐specific functions based on European standards and specifications 2 …”

Standard Analysis for Transfer Delay in CTCS‐3

“…These parameters are taken from the Refs. [5,6,12,[19][20][21]. Table 3 provides the parameter values of different failure and recovery models.…”

Reliable transmission schemes for train control information in high-speed railway

“…The reliability analysis of GSM-R redundant network is performed in [2][3]. A handover trigger scheme for high-speed railway is proposed in [4].…”