Measurements and Analysis of Propagation Channels in High-Speed Railway Viaducts

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

“…Therefore, different breakpoint distances were reported in the aforementioned hilly terrain measurements, i.e., 778 m in [75] and 500 m in [76]. Since viaduct is a common HST scenario, PLs of HST viaduct channels have been thoroughly studied in the literature, e.g., [51], [52], [55]- [58], [62], [64], [65]. Most of these measurements highlighted the impact of the height of the viaduct and the relative height of the BS on the estimated PL.…”

“…The Ricean K-factor is a very important parameter in link budget and channel modeling. Therefore, many papers presented the estimation of K-factors in different scenarios, e.g., open space [47], viaduct [51], [53], [54], [62]- [65], cutting [69]- [73], and hilly terrain [75]. The previous discussions of the dominance of the LoS component, the breakpoint distance, and the impact of the viaduct and cutting structure are also related to the K-factor.…”

Performance analysis of high‐speed railway communication systems subjected to co‐channel interference and channel estimation errors

“…Recently, wireless communications for high-speed railway has attracted substantial interests [1][2][3][4][5][6]. Many challenges occur when designing this system.…”

“…Many challenges occur when designing this system. To elaborate a little further, the channel characteristics of high-speed railways have been studied in [1,2]. The authors argued that there is always a line-of-sight signal path between the FS and the on-board BS in an open terrain scenario, which leads to Rician fading distribution.…”

Channel Measurement and Modeling in Complex Environments

“…The fourth generation (4G) Long Term Evolution for Railway (LTE-R), is expected to provide not only optimized services for train control but also the high-quality internet access for passengers in the future. Several propagation measurement campaigns have been conducted in different HSR scenarios for the wireless channels, e.g., in viaducts [172,173,35], hilly terrains [174,175] cuttings [176,177,178], train stations [179,180], and tunnels [181,182] scenarios.…”