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학술지 Stochastic Channel Modeling for Railway Tunnel Scenarios at 25 GHz
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저자
Danping He, Bo Ai, Ke Guan, Zhangdui Zhong, 회빙, 김준형, 정희상, 김일규
발행일
201802
출처
ETRI Journal, v.40 no.1, pp.39-50
ISSN
1225-6463
출판사
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.2017-0190
협약과제
17HF1600, (통합)초연결 스마트 서비스를 위한 5G 이동통신 핵심기술개발, 정현규
초록
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.
키워드
MHN, Millimeter wave channel, Railway communication, Ray tracing simulation, Stochastic channel modeling
KSP 제안 키워드
5 GHz, Channel Characteristics, Channel parameters, Communication system, Fifth Generation(5G), High Mobility, High data rate, MHz bandwidth, Mobile Hotspot, Railway tunnel, Seamless connectivity
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