Title
Outdoor to Indoor Propagation Channel Measurements at 28 GHz
Abstract
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.
Year
DOI
Venue
2019
10.1109/TWC.2018.2890239
IEEE Transactions on Wireless Communications
Keywords
Field
DocType
Loss measurement,Antenna measurements,Delays,Wireless communication,Windows,Phased arrays
Omnidirectional antenna,Wireless,Channel sounding,Delay spread,Beam steering,Communication channel,Phased array,Real-time computing,Path loss,Acoustics,Mathematics
Journal
Volume
Issue
ISSN
18
3
1536-1276
Citations 
PageRank 
References 
0
0.34
0
Authors
9
Name
Order
Citations
PageRank
C. Umit Bas1133.37
Rui Wang215415.80
Seun Sangodoyin35211.99
Thomas Choi464.93
Sooyoung Hur538326.16
Kuyeon Whang642.25
Jeongho Park78710.50
Jianzhong (Charlie) Zhang821920.58
Andreas F. Molisach98233616.51