Measurements and Analysis of Short-Term Fading Behavior in High-Speed Railway Communication Networks

Zhou, Tao; Cheng, Tao; Salous, Sana; Liu, Liu

doi:10.1109/tvt.2018.2883120

Cited by 24 publications

(12 citation statements)

References 35 publications

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“…In , it is found that there is negative correlation between the RMS‐DS and distance. The conclusion is similar with the results in Zhou, Tao, Salous, et al (). It is found that a large distance leads to a small number of multipath components and reduced lower power of Rx signal can be observed.…”

Section: Discussionsupporting

confidence: 92%

“…where p is the pth delay bins, and (t) is the mean delay, expressed as As shown in Figure 11, the RMS-DS is related with the Tx-Rx distance, and we use a linear model to describe it as 10log 10 (RMS[ns]) = −0.001d(m) + 26.72 (11) In (11), it is found that there is negative correlation between the RMS-DS and distance. The conclusion is similar with the results in Zhou, Tao, Salous, et al (2019). It is found that a large distance leads to a small number of multipath components and reduced lower power of Rx signal can be observed.…”

Section: Pdp and Rms Delay Spreadsupporting

confidence: 90%

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Measurement and Modeling of LTE‐Railway Channels in High‐Speed Railway Environment

Wen

et al. 2020

Radio Science

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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 communication system is necessary. The understanding of propagation characteristics of radio channel is important for HSR communication system design. In this paper, a wideband measurement in suburban HSR scenarios at 460 MHz is presented. Some typical channel parameters such as the large-scale fading, Ricean K factor, power-delay profile, and root-mean-square delay spread are extracted from the measurement data. The different distributions of small-scale fading are also compared. 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 evaluation of HSR communication network, especially for the Long-Term-Evolution (LTE)-railway system.

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Section: Discussionsupporting

confidence: 92%

Section: Pdp and Rms Delay Spreadsupporting

confidence: 90%

Measurement and Modeling of LTE‐Railway Channels in High‐Speed Railway Environment

Wen

et al. 2020

Radio Science

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“…The communication system is responsible for providing bidirectional and reliable data transmission channels between the train and ground to meet the specific needs of integrated services transmission [18]. However, due to the two unique features of vactrainclosed metal vacuum tube and ultra-high velocity-the train-to-ground wireless communication for vactrains will be more challenging than that of the current HSR [19] and maglev train. Therefore, a wireless communication system of high reliability and high performance dedicated to scenario of speed exceeding 1000 km/h needs to be investigated, catering for the strong train-to-ground communication demand of vactrain.…”

Section: Introductionmentioning

confidence: 99%

Broadband Wireless Communication Systems for Vacuum Tube High-Speed Flying Train

et al. 2020

Self Cite

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A vactrain (or vacuum tube high-speed flying train) is considered as a novel proposed rail transportation approach in the ultra-high-speed scenario. The maglev train can run with low mechanical friction, low air resistance, and low noise mode at a speed exceeding 1000 km/h inside the vacuum tube regardless of weather conditions. Currently, there is no research on train-to-ground wireless communication system for vactrain. In this paper, we first summarize a list of the unique challenges and opportunities associated with the wireless communication for vactrain, then analyze the bandwidth and Quality of Service (QoS) requirements of vactrain’s train-to-ground communication services quantitatively. To address these challenges and utilize the unique opportunities, a leaky waveguide solution with simple architecture but excellent performance is proposed for wireless coverage for vactrains. The simulation of the leaky waveguide is conducted, and the results show the uniform phase distribution along the horizontal direction of the tube, but also the smooth field distribution at the point far away from the leaky waveguide, which can suppress Doppler frequency shift, indicating that the time-varying frequency-selective fading channel could be approximated as a stationary channel. Furthermore, the train-to-ground wireless access architectures based on leaky waveguide are studied and analyzed. Finally, the moving scheme is adopted based on centralized, cooperative, cloud Radio Access Network (C-RAN), so as to deal with the extremely frequent handoff issue.

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“…In order to realize this vision, the integrated satellite-terrestrial communication systems should be carefully designed, especially by analyzing the interference between the satellite link and the terrestrial link based on realistic channel characteristics Ji et al, 2018). Hence, it is essential to capture joint channel characteristics in cooperative satellite-terrestrial systems in order to make realistic performance assessments and channel modeling for future intelligent rail transportation (Zhou et al, 2019a(Zhou et al, , 2019b. Most of the existing performance analyses for satellite and terrestrial communication systems were studied based on pure mathematical models (M. K., 2016;Park et al, 2015;Yang & Hasna, 2015;Yang et al, 2017;Zhu et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Satellite‐Terrestrial Channel Characterization in High‐Speed Railway Environment at 22.6 GHz

Guan

Yan

et al. 2020

Radio Science

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The integration of satellite and terrestrial communication systems plays a vital role in the fifth‐generation mobile communication system (5G) for the ubiquitous coverage, reliable service, and flexible networking. Moreover, the millimeter wave (mmWave) communication with large bandwidth is a key enabler for 5G intelligent rail transportation. In this paper, the satellite‐terrestrial channel at 22.6 GHz is characterized for a typical high‐speed railway (HSR) environment. The three‐dimensional model of the railway scenario is reconstructed and imported into the Cloud Ray‐Tracing (CloudRT) simulation platform. Based on extensive ray‐tracing simulations, the channel for the terrestrial HSR system and the satellite‐terrestrial system with two weather conditions are characterized, and the interference between them are evaluated. The results of this paper can help for the design and evaluation for the satellite‐terrestrial communication system enabling future intelligent rail transportation.

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Measurements and Analysis of Short-Term Fading Behavior in High-Speed Railway Communication Networks

Cited by 24 publications

References 35 publications

Measurement and Modeling of LTE‐Railway Channels in High‐Speed Railway Environment

Measurement and Modeling of LTE‐Railway Channels in High‐Speed Railway Environment

Broadband Wireless Communication Systems for Vacuum Tube High-Speed Flying Train

Satellite‐Terrestrial Channel Characterization in High‐Speed Railway Environment at 22.6 GHz

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