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학술대회 Multipath Characteristics of Outdoor-to-Indoor Propagation Based on 32-GHz Measurements
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이주열, 김경원, 김명돈, 박재준
European Conference on Antennas and Propagation (EuCAP) 2020, pp.1-5
20HH1700, 선제적 주파수 이용을 위한 시·공간적 스펙트럼 엔지니어링 기술 개발, 정영준
This paper investigates measurement-based multi-path characteristics of millimeter-wave (mmWave) outdoor-to-indoor (O2I) propagation. The measurement campaigns were conducted in a typical office building with a 500-MHz bandwidth channel sounder operating at 32 GHz. The multipath propagation characteristics are analyzed in spectrum-based approaches in temporal (delay) and spatial (angular) domains. In our measurements, we considered the effect of the transmit incidence angle on the multipath characteristics. In the perpendicular transmit beam case, we observed regularly recurring multipath components reflecting from the back-side and front-side windows. However, in non-perpendicular incidences, it was difficult to identify the sources of multipath reflections with the spectrum-based approach. From the measurement data analysis, we also observed that the delay spread and the angular spread do not have any meaningful dependency on the incidence angles; these are more relevant to the surrounding indoor environments near the RX.
KSP 제안 키워드
Angular spread, Based Approach, Channel Sounder, Data analysis, Delay spread, Front-side, Indoor Environment, MHz bandwidth, Non-perpendicular, Office building, Outdoor-to-indoor Propagation