Title
Stochastic Delay Analysis for Train Control Services in Next-Generation High-Speed Railway Communications System
Abstract
The communication delay of train control services has a great impact on the track utilization and speed profile of high-speed trains. This paper undertakes stochastic delay analysis of train control services over a high-speed railway fading channel using stochastic network calculus. The mobility model of high-speed railway communications system is formulated as a semi-Markov process. Accordingly, the instantaneous data rate of the wireless channel is characterized by a semi-Markov modulated process, which takes into account the channel variations due to both large- and small-scale fading effects. The stochastic service curve of high-speed railway communications system is derived based on the semi-Markov modulated process. Based on the analytical approach of stochastic network calculus, the stochastic upper delay bounds of train control services are derived with both the moment generating function method and the complementary cumulative distribution function method. The analytical results of the two methods are compared and validated by simulation.
Year
DOI
Venue
2016
10.1109/TITS.2015.2450751
Intelligent Transportation Systems, IEEE Transactions
Keywords
Field
DocType
LTE-R,stochastic network calculus,train control services
Wireless,Simulation,Fading,Computer science,Communication channel,Communications system,Mobility model,Electronic engineering,Network calculus,Train,Moment-generating function
Journal
Volume
Issue
ISSN
17
1
1524-9050
Citations 
PageRank 
References 
15
0.68
25
Authors
4
Name
Order
Citations
PageRank
Lei Lei186045.31
Lu, J.2150.68
Yuming Jiang387888.36
S. Shen4655.37