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http://dx.doi.org/10.4218/etrij.2017-0190

Stochastic Channel Modeling for Railway Tunnel Scenarios at 25 GHz  

He, Danping (State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing Engineering Research Center of High-speed Railway Broadband Mobile Communications)
Ai, Bo (State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing Engineering Research Center of High-speed Railway Broadband Mobile Communications)
Guan, Ke (State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing Engineering Research Center of High-speed Railway Broadband Mobile Communications)
Zhong, Zhangdui (State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing Engineering Research Center of High-speed Railway Broadband Mobile Communications)
Hui, Bing (5G Giga Service Research Laboratory, ETRI)
Kim, Junhyeong (5G Giga Service Research Laboratory, ETRI, School of Electrical Engineering, Korea Advanced Institute of Science and Technology)
Chung, Heesang (5G Giga Service Research Laboratory, ETRI)
Kim, Ilgyu (5G Giga Service Research Laboratory, ETRI)
Publication Information
ETRI Journal / v.40, no.1, 2018 , pp. 39-50 More about this Journal
Abstract
More people prefer using rail traffic for travel or for commuting owing to its convenience and flexibility. The railway scenario has become an important communication scenario in the fifth generation era. The communication system should be designed to support high-data-rate demands with seamless connectivity at a high mobility. In this paper, the channel characteristics are studied and modeled for the railway tunnel scenario with straight and curved route shapes. On the basis of measurements using the "Mobile Hotspot Network" system, a three-dimensional ray tracer (RT) is calibrated and validated for the target scenarios. More channel characteristics are explored via RT simulations at 25.25 GHz with a 500-MHz bandwidth. The key channel parameters are extracted, provided, and incorporated into a 3rd-Generation-Partnership-Project-like stochastic channel generator. The necessary channel information can be practically realized, which can support the link-level and system-level design of the communication system in similar scenarios.
Keywords
MHN; Millimeter wave channel; Railway communication; Ray tracing simulation; Stochastic channel modeling;
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