Railway signaling systems and new trends in wireless data communication

Aguado, Marina; Jacob, Eduardo; Saiz, P.; Unzilla, Juanjo; Higuero, Marivi; Matias, Jon

doi:10.1109/vetecf.2005.1558143

Cited by 52 publications

(23 citation statements)

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“…A typical headway in CBTC systems is 90 seconds or less [5], [15], [20], [21]. Furthermore, it enables advanced features such as driverless and unattended train operations [18], [57].…”

Section: A Conventional Signalling Systemsmentioning

confidence: 99%

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Radio Communication for Communications-Based Train Control (CBTC): A Tutorial and Survey

Farooq

Soler

2017

IEEE Commun. Surv. Tutorials

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Abstract-Over the last decade, railway industry has seen a huge transition from conventional railway signalling systems to modern, communication-based signalling systems. Communications-Based Train Control (CBTC) is a modern communication-based system that uses radio communication to transfer timely and accurate train control information. CBTC is the choice of mass-transit railway operators today, with over a hundred systems currently installed worldwide. The safetyrelated, time-critical applications such as train control impose stringent reliability and availability requirements on the radio communication technology used. IEEE 802.11 Wi-Fi, despite being originally developed for stationary users within a limited area, has prevailed as the de-facto radio technology for CBTC. Unfortunately, very limited literature is publicly available on this topic due to the highly competitive nature of the railway industry. We believe that this paper fills the much-needed gap. It aims to present a comprehensive tutorial, as well as a survey of the stateof-the-art, of CBTC and the role of radio communication in it. The operation and fundamental components of a CBTC system are discussed. A summary of the evolution of the communication technologies used for modern railway signalling is presented. The benefits and drawbacks of using a radio communication technology, particularly Wi-Fi, and the challenges it introduces, are discussed. Best practices in the design of a CBTC radio network and the measures to optimize its availability are discussed, while using the currently in-progress Copenhagen Strain CBTC project as a reference. An overview of the CBTC standardization efforts, as well as the IEEE CBTC standardfrequently overlooked due to its limited scope-is included. The paper is concluded by providing a number of potential directions for future work.

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“…A typical headway in CBTC systems is 90 seconds or less [5], [15], [20], [21]. Furthermore, it enables advanced features such as driverless and unattended train operations [18], [57].…”

Section: A Conventional Signalling Systemsmentioning

confidence: 99%

“…Mass-transit is characterized by short distances and line capacity, and thus CBTC makes a suitable choice [10]- [12]. In contrast, mainline is characterized by long distances, high speeds and complex networks, and thus use ERTMS as the signalling standard [10], [57], [154], [155].…”

Section: Future Research Directionsmentioning

confidence: 99%

Radio Communication for Communications-Based Train Control (CBTC): A Tutorial and Survey

Farooq

Soler

2017

IEEE Commun. Surv. Tutorials

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“…For convenience, we simply denote π by δ. Our objective is to determine an optimal stationary policy δ * , which maximizes the expected total discounted reward given by (2).…”

Section: Next State S(t+1) Is Denoted As P[ S(t+1)|s(t) A(t)]mentioning

confidence: 99%

Handoff management in communication-based train control networks using stream control transmission protocol and IEEE 802.11p WLANs

Zhu

Ning

et al. 2012

J Wireless Com Network

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Communication-based train control (CBTC) network is an automated control network for railways that ensures the safe operation of rail vehicles using data communications. CBTC networks have stringent requirements for communication availability and latency. Wireless local area network (WLAN) is a popular choice in CBTC networks due to the available commercial-off-the-shelf WLAN equipments. However, handoffs in WLANs may result in communication interruption and long latency in WLANs-based CBTC networks. In this article, we propose a handoff management scheme for CBTC networks using stream control transmission protocol (SCTP) and IEEE 802.11p WLANs to provide high communication availability and low latency in CBTC networks. We formulate the handoff decision problem as a stochastic Semi-Markov Decision Process (SMDP) with the objectives of minimizing the handoff latency and maximizing the SCTP throughput. Simulation results are presented to show that the proposed scheme can significantly improve the handoff performance in CBTC networks.

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“…Aguado et al [16] note that standardsbased communications systems such as IEEE 802.16 [17] and IEEE 802.20 (Mobile Broadband Wireless Access) [18] can be used for railway signaling instead of the cable-based systems currently in use.…”

Section: B Opportunitiesmentioning

confidence: 99%

A Survey on Methods for Broadband Internet Access on Trains

Fokum

Frost

2010

IEEE Commun. Surv. Tutorials

125

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Abstract-We present a survey of approaches for providing broadband Internet access to trains. We examine some of the barriers that hinder the use of broadband Internet on trains and then discuss some of the opportunities for broadband deployment to trains. This survey considers some of the basic concepts for providing broadband Internet access and then reviews associated network architectures. The review of network architectures shows that we can subdivide networks for providing broadband Internet access to trains into the train-based network, the access network-for connecting the train to the service provider(s)-and the aggregation network-for collecting user packets generated in the access network for transmission to the Internet. Furthermore, our review shows that the current trend is to provide Internet access to passengers on trains using IEEE 802.11; however, a clear method for connecting trains to the global Internet has yet to emerge. A summary of implementation efforts in Europe and North America serves to highlight some of the schemes that have been used thus far to connect trains to the Internet. We conclude by discussing some of the models developed, from a technical perspective, for testing the viability of deploying Internet access to trains.

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Railway signaling systems and new trends in wireless data communication

Cited by 52 publications

References 1 publication

Radio Communication for Communications-Based Train Control (CBTC): A Tutorial and Survey

Radio Communication for Communications-Based Train Control (CBTC): A Tutorial and Survey

Handoff management in communication-based train control networks using stream control transmission protocol and IEEE 802.11p WLANs

A Survey on Methods for Broadband Internet Access on Trains

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