Channel measurement and time dispersion analysis for outdoor mobile ultrawideband environment

Authors: SOLOMON NUNOO, UCHE CHUDE-OKONKWO, RAZALI NGAH, CHOLLETTE CHUDE-OLISAH, YASSER ZAHEDI

Abstract: Ultrawideband (UWB) technology offers short-range high-data transmission rates. Most researchers in recent times have focused on indoor UWB channel measurements and in instances where outdoor cases were reported, they focused on static scenarios. This paper reports on mobile outdoor channel measurements typical of roadway and recreation park Infostation scenarios. It also chronicles the delay spread as well as channel stationarity analysis of the measurement data. We carried out measurements in the 3.1-5.3 GHz frequency range in various line-of-sight scenarios. The results of this research show that the delay spread values generally decrease with increasing mobile speed. Additionally, the degree of variation in the channel statistics show that systems designed with the obtained reference parameter values will perform well on average, but with low resource utilization.

Keywords: Ultrawideband, channel measurement, Infostation, time dispersion, channel stationarity

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