2,167 research outputs found
Outdoor to Indoor Penetration Loss at 28 GHz for Fixed Wireless Access
This paper present the results from a 28 GHz channel sounding campaign
performed to investigate the effects of outdoor to indoor penetration on the
wireless propagation channel characteristics for an urban microcell in a fixed
wireless access scenario. The measurements are performed with a real-time
channel sounder, which can measure path loss up to 169 dB, and equipped with
phased array antennas that allows electrical beam steering for directionally
resolved measurements in dynamic environments. 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. For outdoor and indoor receiver locations, we compare path loss,
delay spreads and angular spreads obtained for two different types of
buildings
5G 3GPP-like Channel Models for Outdoor Urban Microcellular and Macrocellular Environments
For the development of new 5G systems to operate in bands up to 100 GHz,
there is a need for accurate radio propagation models at these bands that
currently are not addressed by existing channel models developed for bands
below 6 GHz. This document presents a preliminary overview of 5G channel models
for bands up to 100 GHz. These have been derived based on extensive measurement
and ray tracing results across a multitude of frequencies from 6 GHz to 100
GHz, and this document describes an initial 3D channel model which includes: 1)
typical deployment scenarios for urban microcells (UMi) and urban macrocells
(UMa), and 2) a baseline model for incorporating path loss, shadow fading, line
of sight probability, penetration and blockage models for the typical
scenarios. Various processing methodologies such as clustering and antenna
decoupling algorithms are also presented.Comment: To be published in 2016 IEEE 83rd Vehicular Technology Conference
Spring (VTC 2016-Spring), Nanjing, China, May 201
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