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Conference Paper
Multipath Characteristics of Outdoor-to-Indoor Propagation Based on 32-GHz Measurements
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- Authors
- Juyul Lee, Kyung-Won Kim, Myung-Don Kim, Jae-Joon Park
- Issue Date
- 2020-03
- Citation
- European Conference on Antennas and Propagation (EuCAP) 2020, pp.1-5
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- 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 Keywords
- Angular spread, Based Approach, Channel Sounder, Data analysis, Delay spread, Front side, Indoor Environment, MHz bandwidth, Non-perpendicular, Office building, Outdoor-to-indoor Propagation