Outdoor to Indoor Propagation Channel Measurements at 28 GHz
| Autor: | Kuyeon Whang, Charlie Jianzhong Zhang, Jeong-Ho Park, Thomas Choi, Sooyoung Hur, Andreas F. Molisch, C. Umit Bas, Seun Sangodoyin, Rui Wang |
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| Rok vydání: | 2019 |
| Předmět: |
business.industry
Computer science Phased array Applied Mathematics Acoustics Beam steering Channel sounding 020206 networking & telecommunications 02 engineering and technology Computer Science Applications Delay spread 0202 electrical engineering electronic engineering information engineering Wireless Path loss Electrical and Electronic Engineering business Fixed wireless Omnidirectional antenna Communication channel |
| Zdroj: | IEEE Transactions on Wireless Communications. 18:1477-1489 |
| ISSN: | 1558-2248 1536-1276 |
| DOI: | 10.1109/twc.2018.2890239 |
| Popis: | Outdoor to indoor penetration loss is one of the crucial challenges faced at millimeter-wave frequencies. This paper presents the results from 28-GHz channel sounding campaigns performed to investigate the impact of this phenomenon on the wireless propagation channel characteristics in small cell and fixed wireless access scenarios. The measurements are performed with a real-time channel sounder equipped with phased array antennas that allow beam-forming and electronic beam steering for directionally resolved measurements. Thanks to the short measurement time and the excellent phase stability of the system, we obtain both directional and omnidirectional channel power delay profiles without any delay uncertainty. We compare the measured path loss, delay spread, and angular spread for indoor and outdoor receiver locations for two different types of buildings. We find that the penetration loss strongly depends on the angle of incidence, and the scatterers on the outside of the building strongly impact how much power is coupled into the building. Based on the results, we provide statistical models for path loss, delay spread, and angular spread. |
| Databáze: | OpenAIRE |
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