28 GHz Microcell Measurement Campaign for Residential Environment

TL;DR

This study conducts the first double-directionally resolved measurement campaign at 28 GHz in a suburban microcell, providing detailed channel characteristics using advanced phased array measurements.

Contribution

It introduces a real-time, phased array channel sounder capable of rapid beam steering and phase-coherent measurements, enabling comprehensive mm-wave channel analysis in residential environments.

Findings

Path-loss, shadowing, and delay spread statistics for LOS and NLOS cases.

Sample power angular spectrum and multipath component results.

Phase-coherent measurements enable accurate directional and omnidirectional profiles.

Abstract

This paper presents results from the (to our knowledge) first double-directionally resolved measurement campaign at mm-wave frequencies in a suburban microcell. The measurements are performed with a real-time channel sounder equipped with phased antenna arrays that allows electrical beam steering in microseconds, and which can measure path-loss of up to 169 dB. Exploiting the phase coherency of the measurements in the different beams, we obtain both directional and omnidirectional channel power delay profiles without any delay uncertainty. We present statistics of channel characteristics such as path-loss, shadowing and delay spread results for line-of-sight and non-line-of-sight cases, as well as sample results for power angular spectrum and extracted multi-path components.