Conference paper
Impact of the traffic load on performance of an alternative LTE railway communication network
Although many countries only now begin to invest in deployment of GSM-Railways (GSM-R) networks, this technology is already obsolete and reveals its significant shortcomings. The most troublesome one is the insufficient number of communication channels offered by GSM-R. This is a major problem obstructing railway operations at big train stations and junctions.
Hence, other technologies, such as Long Term Evolution (LTE), need to be considered as an alternative to GSM-R. The goal of this paper is to demonstrate the capacity increase that railways can expect, from the introduction of LTE as internal communication infrastructure supporting railway signaling.
This work is based on OPNET realistic network simulations, which show the relation between the traffic load (the number of trains transmitting and receiving data in an LTE cell) and the delay performance of the European Train Control System (ETCS) signaling, which is one of the essential railway communication services.
Results of the simulations demonstrate that LTE can solve the urgent capacity problem faced by railways currently deploying GSM-R.
Language: | English |
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Publisher: | IEEE |
Year: | 2013 |
Pages: | 396-401 |
Proceedings: | 13th International Conference on ITS Telecommunications (ITST 2013) |
ISBN: | 1479908444 , 1479908460 , 9781479908448 and 9781479908462 |
Types: | Conference paper |
DOI: | 10.1109/ITST.2013.6685579 |
ORCIDs: | Sniady, Aleksander and Soler, José |
Delays Downlink ERTMS ETCS ETCS signaling European train control system signaling GSM-R GSM-R networks GSM-railway networks Interference LTE LTE cell Long Term Evolution OPNET OPNET realistic network Quality of service Rail transportation Uplink alternative LTE railway communication network big train junctions big train stations cellular radio communication channels internal communication infrastructure mobile communication obstructing railway operations rail traffic rail traffic control railway communication railway communication services railway signaling railway signalling simulation telecommunication control telecommunication signalling traffic load