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학술대회 Channel Characteristics in Rural Railway Environment at 28 GHz
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Longhe Wang, Bo Ai, Ke Guan, Danping He, Zhangdui Zhong, 김준형
International Conference on Intelligent Transport Systems Telecommunications (ITST) 2018, pp.1-5
18HH5200, 위성과 셀룰라간 유연한 연동을 위한 5G 무선네트워크 기술 개발, 김일규
Nowadays, rail traffic is expected to evolve into a new era of 쨩smart rail mobility쨩, where trains, infrastructure, travelers and goods will be increasingly interconnected. Railway communications are required to support various high-data-rate applications, the communication system should be carefully designed, which makes railway scenario becomes an important communication scenario in the 5G era. Millimeter-wave (mmWave) bands and novel technologies like resource allocation, multiple access and multiple-output beam-forming are proposed in the realization of this goal. In this paper, the mmWave channel characteristics of rural railway scenario are studied via a calibrated ray-tracing simulator. The large-scale parameters of the channel characteristics, including the path loss, root-mean-square (RMS) delay spread, Rician K-factor, angular spreads, and cross-polarization ration (XPR) are explored. The statistical properties, decorrelation distance and cross-correlations are analyzed. The studied channel characteristics can be practically used to support the link level and system level design of the communication system in the similar environments.
KSP 제안 키워드
28 GHz, Angular spread, Channel Characteristics, Communication system, Cross polarization(CP), Cross-Correlation, Decorrelation distance, Delay spread, High data rate, MmWave channel, Novel technologies