TU Braunschweig


Miao, Z.; Tang, T.; Liu, J.:
Performance Analysis of High Speed Rail Wireless Communication Network.
International Conference on Cyber-Enabled Distributed Computing and Knowledge Discovery, S. 483-489, Beijing, China, Oktober 2013.


GSM–R (Global System for Mobile Communications–Rail) is employed as the main channel to transfer safety data in high speed rail control system. Its reliability directly affects train safety. In the analysis of two different GSM-R redundant networks, we use the AltaRica language and Markov Chain in modeling. Combined with related data, system reliability and availability are calculated through simulations respectively. Simulation results: co-sited network reliability is higher than intercross network’s due to differences of redundant network structures and handoff rates; co-sited network availability is lower than intercross network due to co-sited network common failure factor. Based on these conclusions, suggestions are: the co-sited network should be used in key parts which demand high reliability in short time while the intercross network should be used in most parts along the rails.