Comparison between GSM-R coverage level and EM noise level in railway environment

Hammi, Tarik; Slimen, N. Ben; Deniau, Virginie; Rioult, Jean; Dudoyer, Stephen

doi:10.1109/itst.2009.5399370

Cited by 16 publications

(14 citation statements)

References 4 publications

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“…In practise, the power of the received signal on board train varies between -20 dBm at proximity of the base station and -90 dBm at middle distance between two successive base stations (Hammi, 2009). The GSM-R is used in order to maintain a continuous voice and data link between the train and the control centres, and different trains located in the same neighbourhood.…”

Section: The Gsm-r Communication Systemmentioning

confidence: 99%

“…Measurement campaigns carried out on board moving trains (Hammi, 2009) showed that the transient events, triggered when a bad sliding contact occurs between the catenary and the pantograph, are the most penalizing events for the GSM-R useful signals. Fig.…”

Section: Transient Emi Acting On the Gsm-r Useful Signalmentioning

confidence: 99%

“…Measurement campaigns have been carried out on board moving train, on railway lines equipped with the GSM-R system, in order to show the relation between the public GSM signal and the permanent interferences that can be observed in the closest downlink GSM-R frequency channel to the public GSM band (Hammi, 2009). …”

Section: Permanent Emi Acting On Gsm-r Antennamentioning

confidence: 99%

See 2 more Smart Citations

Susceptibility of the GSM-R Transmissions to the Railway Electromagnetic Environment

Dudoyer¹,

Deniau²,

Slimen³

et al. 2012

Infrastructure Design, Signalling and Security in Railway

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Section: The Gsm-r Communication Systemmentioning

confidence: 99%

Section: Transient Emi Acting On the Gsm-r Useful Signalmentioning

confidence: 99%

See 1 more Smart Citation

Susceptibility of the GSM-R Transmissions to the Railway Electromagnetic Environment

Dudoyer¹,

Deniau²,

Slimen³

et al. 2012

Infrastructure Design, Signalling and Security in Railway

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“…They generate RF signals at sufficient power levels to be of the order of magnitude of the useful signals. Knowing that the received power at the train antenna ranges between -20 dBm and -90 dBm [3], it becomes therefore realistic to achieve this situation with sufficiently close, limited power jammers. The detection and recognition of such disturbing signals require adapted approaches [4].…”

Section: Introductionmentioning

confidence: 99%

Uncertainty analysis in system-level vulnerability assessment for IEMI

Mao

Canavero

2015

2015 IEEE International Symposium on Electromagnetic Compatibility (EMC)

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This paper explores an approach trying to recognize the presence of electromagnetic attacks on an equipment. Wireless communications are widely used in railway traffic management systems. Such systems are probably susceptible to be disturbed by malicious actions involving jammers. The general objective of this work is to develop a specific method enabling to detect and to recognize these types of interfering signals. This method could be used to involve adequate reactions in order to reduce the impact on the railway network. This paper focuses on the recognition method. It is based on accurate statistical models of signals generated by jammers. This work is carried out in the framework of the European project "SECRET" for SECurity of Railways against Electromagnetic aTtacks.

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“…Especially railways do not present a clean environment. In fact, railways present the same problems as other areas (e.g., multipath effect) but additionally, some effects arise just only in this area, e.g., the effect in the communications of transient electromagnetic (EM) disturbances produced by the sliding contact between catenary and pantograph [7] [8].…”

mentioning

confidence: 99%

An Overview of Current IP Network Emulators for the Validation of Railways Wireless Communications

et al. 2020

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Communication technologies are in continuous evolution and as well, the different applications making use of them. In order to succeed with the roll-out of the communication-based applications, it is required that the communications technologies are intensively tested and validated before deployment. Current strategies for testing and validation cover field tests and laboratory tests. Railways is also taking advantage of the communication technologies evolution, and therefore, there is a need for having testing and validation strategies adapted to the railway environment, especially for safety-critical applications. Field tests and laboratory tests also apply in Railways. In the frame of laboratory tests, this paper includes an overview of different network emulators existing currently in the market. Furthermore, an analysis of the gaps of the network emulators with regards to the needs of the railways environment is also included. The goal of this paper is to show that network emulators are a flexible cost-effective solution for communication technologies testing purposes. Additionally, this paper also shows that there is a need to adapt current emulators to the railway environment in order to test and validate the future railway applications based on communication technologies. INDEX TERMS IP Communication, Laboratory testing, Network Emulator, Railways, Wireless Communications I. INTRODUCTION Nowadays, communication technologies are in continuous evolution, offering a higher performance that allows getting further services. In order to adopt these new services, the communication technology in use has to be tested to ensure the required performance. However, due to the time constraints and cost of infrastructure deployment, the real performance of new communication technologies are not simple to be tested. Railways is also aiming to move forwards in this field of the communication technologies to make railways more efficient, safer and profitable [1], even if the main stakeholders interested in the deployment of these new communication technologies are mobile operators. Future railway services are pushing restrictive requirements such as large bandwidth (high data rate transmission capabilities) [2] and low latency [3]. To research these type of requirements (among others) in the railway communication field, some European projects were built, such as Shift2Rail [4] and FRMCS [5]. Shift2Rail project covers the future adaptable communications for railways, but also several different topics such as train integrity, interconnections between the different components inside the train car apart from the communication technologies. FRMCS project is also analyzing new mobile communications capabilities for railways. With regard to validation, particularly, Shift2Rail includes in its innovation program, a research activity related to the development of a new laboratory test framework, which comprises simulation tools and testing procedures for carrying out open tests with clear operational rules and simple certification ...

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Comparison between GSM-R coverage level and EM noise level in railway environment

Cited by 16 publications

References 4 publications

Susceptibility of the GSM-R Transmissions to the Railway Electromagnetic Environment

Susceptibility of the GSM-R Transmissions to the Railway Electromagnetic Environment

Uncertainty analysis in system-level vulnerability assessment for IEMI

An Overview of Current IP Network Emulators for the Validation of Railways Wireless Communications

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