This standard covers the nominal dimensions, mass and sectional properties of hot rolled sloping flange beam and column sections, sloping and parallel flange channel sections and equal and unequal leg
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We performed a measurement campaign at a carrier frequency of 2.4 GHz on the Guangzhou-Shenzhen dedicated high-speed train line in China. Based on the measurement result we propose a dynamic
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The recent development of high-speed trains (HSTs) as an emerging high mobility transportation system, and the growing demands of broadband services for HST users, introduce
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Wireless communication for high-speed railways (HSRs) that provides reliable and high data rate communication between the train and trackside networks is a challenging task. It is
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High-speed railway (HSR) communications have recently attracted much attention due to some specific railway needs, such as passenger experience services, business process support
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The services of 5G-R are diverse, and the future railway communications should provide reliable wireless coverage in more cases including continuous wide-area coverage along railway lines,
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The relationships between the channel parameters and the distance of transmitter (base station) and receiver are also explored. The results could provide a reference for the design and
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Accurate and efficient channel models considering both large-scale and non-stationary small-scale fading characteristics are crucial for the design, performance evaluation, and parameter
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This article focuses on a survey of channel modeling for the future HSR communication systems.
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fourth generation (4G) systems in railway environments. It provides detailed tunnel channel information, and can be used to develop a broadband channel model for tunnel communication systems.
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IS808 :1989 ''Dimensions for hot rolled steel beam, column, channel andangle s ctions ( third revision )'' covers channel s ctions meant for structural application. Channel sections f use r in Posts
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In this paper, we present a brief history of railway communication systems, their features and applications. In addition, we discuss the technical
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We have classified HST channel measurements according to scenarios, carrier frequencies, bandwidths, measured channels, antenna configurations, train speeds, and channel statistics.
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In Section 4 conclusions are drawn and open issues for future railway channel measurements and modelling in railway environment are formulated. 2. Railway Communication
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The fifth generation (5G) and beyond communication systems envisage use cases with high mobility. The transmitter and receiver moving at high speeds pose a challenge in acquiring channel state
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Abstract High-speed railway (HSR) is becoming one of the most effective and important transportation modes. To ensure the safety of HSR, a stable communication system is necessary. The
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Railway applications are in continuous evolution with the aim of offering a more efficient, sustainable, and safer transportation system for the
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Particularly, some important measurement and modeling results in various HSR scenarios, such as viaduct and U-shaped groove (USG), are briefly described and analyzed. In
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Index Terms—High-speed train channels, channel measure- viding communications for train passengers . Therefore, ments, non-stationary channel models, statistical properties. GSM-R cannot meet the
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High-speed railway (HSR) is becoming one of the most effective and important transportation modes. To ensure the safety of HSR, a stable
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In this chapter, we study radio propagation and wireless channels for railway communications. The first part of the chapter focuses on definitions of propagation scenarios. To
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This paper first provides a comprehensive review of the measurement campaigns conducted in different HST scenarios and then addresses the recent advances in HST channel
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NEN-EN 10365 specifies the nominal dimensions and masses of the hot rolled steel channels, I and H sections. The following shapes are covered by this standard: Sections: - Parallel
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In this paper, a two-stage channel-estimation method based on generative adversarial networks (cGAN) is proposed for MIMO-OFDM systems in high-mobility scenarios. The complex
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This special section aims to provide a comprehensive insight of the current research on propagation characteristics in realistic HSR scenarios, channel sounding methods and
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This paper focuses on a survey of channel modeling for the future HSR communication systems. The significant requirements of future HSR channel models are highlighted, and recent
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New technologies and architectures will bring new channel propaga-tion characteristics. Accurate channel models that can capture these channel characteristics play a critical role in the design and
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The widespread popularity of high-speed railways (HSRs) urges a critical demand on high-data-rate railway communication services for both train operation and passenger experience.
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We first summarize the key challenges for HSR channel estimation, especially the Inter-Carrier Interference (ICI) faced by Orthogonal Frequency Division Multiplexing (OFDM) systems.
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This article focuses on a survey of channel modeling for the future HSR communication systems.
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