Millimeter-Wave System for High-Speed Train Communications Between Train and Trackside: System Design and Channel Measurements

Yue, Guangrong; Yu, Daizhong; Cheng, Long; Lv, Qifu; Luo, Zhi-Quan; Li, Qing; Luo, Junxin; He, Xu

doi:10.1109/tvt.2019.2919625

Cited by 25 publications

(22 citation statements)

References 77 publications

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“…With its broader coverage, low data rate IoT connectivity and other critical communication like remote control or automotive applications can be introduced. Therefore, extensive coverage becomes imperative for these new use cases which can be served by the sub-1 GHz band [50]- [52].…”

Section: B Channel Characteristics Of 5g Wireless Systemsmentioning

confidence: 99%

“…Even though mm-wave has great potentials for application in HST communications, due to the high mobility of trains, HST communication is often prone to frequent HOs and fast fading channels, that potentially undermines its availability. As a result, some new technologies such as hybrid beamforming, beam management, network slicing, and distributed antenna system have been introduced in mm-wave communications to enhance its application in HST communications [52].…”

Section: G High Speed Train Communicationmentioning

confidence: 99%

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A Survey of Machine Learning Applications to Handover Management in 5G and Beyond

et al. 2021

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Handover (HO) is one of the key aspects of next-generation (NG) cellular communication networks that need to be properly managed since it poses multiple threats to quality-of-service (QoS) such as the reduction in the average throughput as well as service interruptions. With the introduction of new enablers for fifth-generation (5G) networks, such as millimetre wave (mm-wave) communications, network densification, Internet of things (IoT), etc., HO management is provisioned to be more challenging as the number of base stations (BSs) per unit area, and the number of connections has been dramatically rising. Considering the stringent requirements that have been newly released in the standards of 5G networks, the level of the challenge is multiplied. To this end, intelligent HO management schemes have been proposed and tested in the literature, paving the way for tackling these challenges more efficiently and effectively. In this survey, we aim at revealing the current status of cellular networks and discussing mobility and HO management in 5G alongside the general characteristics of 5G networks. We provide an extensive tutorial on HO management in 5G networks accompanied by a discussion on machine learning (ML) applications to HO management. A novel taxonomy in terms of the source of data to be utilized in training ML algorithms is produced, where two broad categories are considered; namely, visual data and network data. The stateof-the-art on ML-aided HO management in cellular networks under each category is extensively reviewed with the most recent studies, and the challenges, as well as future research directions, are detailed. INDEX TERMS Handover, machine learning, mobility management, fifth generation.

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Section: B Channel Characteristics Of 5g Wireless Systemsmentioning

confidence: 99%

Section: G High Speed Train Communicationmentioning

confidence: 99%

A Survey of Machine Learning Applications to Handover Management in 5G and Beyond

et al. 2021

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“…Delay spread: a secondary effect of the speed is the multipath inside the tube due to reflections in an element like intermediate doors, track, antennas, and any discontinuity of the surface of the tube. This multipath will produce time-varying Doppler spreads and non-stationary fading [32] that will produce the overlapping of the sub-carriers and therefore will introduce Inter-Carrier Interference (ICI). ICI will seriously degrade the synchronizer performance and increase the system bit error rate.…”

Section: Propagation and Challenges Of The Wireless Communicationmentioning

confidence: 99%

Concepts of Hyperloop Wireless Communication at 1200 km/h: 5G, Wi-Fi, Propagation, Doppler and Handover

Tavsanoglu¹,

Briso-Rodríguez

Carmena-Cabanillas

et al. 2021

Energies

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The new generation of capsules that circulate through vacuum tubes at speeds up to 1200 km/h, which is being developed, demands communication systems that can operate at these speeds with high capacity and quality of service. Currently, the two technologies available are the new generation of 802.11ax networks and 5G NR. Using these technologies at such high speeds in a confined environment requires a careful study and design of the configuration of the network and optimization of the physical interface. This paper describes the requirements for critical and business communications, proposing a WLAN and 5G network design based on the analysis of the propagation characteristics and constraints of vacuum tubes and using propagation measurements and simulations made in similar environments at frequencies of 2.5/5.7/24 GHz. These measurements and simulations show that propagation losses in this environment are low (4–5 dB/100 m), as a consequence of the guided propagation, so that the use of bands is preferred. Finally, considering the propagation constraints and requirements of a Hyperloop system, a complete wireless communication system is proposed using two networks with 802.11 and 5G technology.

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“…In recent years, the various systems utilizing millimeter-waves are being studied for railways [1][2][3]. It is known from previous studies that the propagation characteristics of the wireless communication systems using millimeter-waves are affected by rain [4] and snow [5].…”

Section: Introductionmentioning

confidence: 99%

The attenuation characteristics of millimeter-wave by snow accretion

et al. 2020

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The millimeter-wave band is being focused as a frequency band in which high-speed and large-capacity communication can be realized, and various approaches for practical use have been made. In this paper, we studied the attenuation characteristics of the 45 GHz with the moisture contents and thickness of snow, which had never been studied and is expecting to be used in next-generation train communication systems and 5G. The characteristics are also compared with ones of 60 GHz which can be used for new Wi-Fi standard (IEEE 802.11ad). As the result, it is found that when snow accretes to the surface of the antenna radome, the attenuation increases as the moisture content increases and we can not neglect the influence on wireless communication using millimeter-waves.

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Millimeter-Wave System for High-Speed Train Communications Between Train and Trackside: System Design and Channel Measurements

Cited by 25 publications

References 77 publications

A Survey of Machine Learning Applications to Handover Management in 5G and Beyond

A Survey of Machine Learning Applications to Handover Management in 5G and Beyond

Concepts of Hyperloop Wireless Communication at 1200 km/h: 5G, Wi-Fi, Propagation, Doppler and Handover

The attenuation characteristics of millimeter-wave by snow accretion

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