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On the frequency dependency of radio Channel's delay spread

Analyses and Findings From mmMAGIC Multi-frequency Channel Sounding
: Nguyen, S.L.H.; Medbo, J.; Peter, M.; Karttunen, A.; Haneda, K.; Bamba, A.; D'Errico, R.; Iqbal, N.; Diakhate, C.; Conrat, J.-M.


European Association on Antennas and Propagation -EurAAP-:
12th European Conference on Antennas and Propagation, EuCAP 2018 : 9-13 April 2018
London: IET, 2018
ISBN: 978-1-78561-816-1
ISBN: 978-1-78561-815-4
5 pp.
European Conference on Antennas and Propagation (EUCAP) <12, 2018, London>
Conference Paper
Fraunhofer HHI ()

This paper analyzes the frequency dependency of the radio propagation channel's root mean square (rms) delay spread (DS), based on the multi-frequency measurement campaigns in the mmMAGIC project. The campaigns cover indoor, outdoor, and outdoor-to-indoor (O2I) scenarios and a wide frequency range from 2 to 86 GHz. Several requirements have been identified that define the parameters which need to be aligned in order to make a reasonable comparison among the different channel sounders employed for this study. A new modelling approach enabling the evaluation of the statistical significance of the model parameters from different measurements and the establishment of a unified model is proposed. After careful analysis, the conclusion is that any frequency trend of the DS is small considering its confidence intervals. There is statistically significant difference from the 3GPP New Radio (NR) model TR 38.901, except for the O2I scenario.