Path loss models in viaduct and plain scenarios of the High-speed Railway

Abstract

This paper focuses on propagation path loss model ing in viaduct and plain scenarios of the High-speed Railway. The data used for modeling comes from measurement on Zhengzhou Xi'an passenger dedicated line with the maximum moving speed of 340Kmlh. Based on the measurement data, tuned Free-space path loss models in these two scenarios are proposed. The performance of the tuned models is compared with that of the Hata model. The evaluation of the models is in terms of mean

Broadband Access in Complex Environments: LTE on Railway

“…In fact, many papers in the literature focused on this scenario for its experimental modeling [56]- [59]. The path loss as and the standard deviation of shadowing have been analyzed in [60] when the viaducts are located in different areas such as suburban, open, mountain or urban. The small-scale fading is studied in [58] as well as the K-factor, Doppler frequency and delay spread.…”

Channel Measurements and Models for High-Speed Train Communication Systems: A Survey

“…Due to the high speed of the train and the hostile HST environments, conducting accurate channel measurements for HST communication systems is challenging and needs to address particular hardware and software requirements, e.g., robustness, scalability, hardware redundancy and traceability [41]. Many measurement campaigns [42], [44]- [48], [51]- [75], [77]- [79], [81]- [90] for different HST environments were presented in the literature. Here, we will briefly review and classify the important measurements for HST communications according to the scenarios, cellular architecture, measurements' setup parameters (i.e., antenna configuration, carrier frequency, and bandwidth), and measured channel statistics, as shown in Table I.…”

“…2) The viaduct scenario is common for HSTs as they often operate on viaducts [51]- [67]. The main purpose of viaducts is to ensure the smoothness of the rail and the high speed of the train.…”

Propagation characteristics of wideband high-speed railway channel in viaduct scenario at 2.35 GHz

“…Parviainen et al [2] carried out measurements in Taiwan with a bandwidth of 50 MHz at 2.5 GHz, and presented high-speed train propagation characteristics, such as delay spread characteristics, angle information, and Doppler behavior. Wei et al [3] and Lu et al [4] provided a PL model in viaduct and plain scenarios and compared it with the Hata model. Wei et al [5] obtained the distribution and autocorrelation of the SF in a viaduct scenario in the BeijingShanghai high-speed railway with a speed of 220 km/h.…”

“…[3][4][5][6][7][8][9] employed track-side base stations of the GSM-R network at about 930 MHz with a bandwidth of 200 kHz. These measurements cannot obtain accurate characteristics of the wideband wireless channel.…”