Ultra wideband channel measurements in an indoor office environment with horizontal and vertical polarizations




Shields, John A.

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Ultra wideband (UWB) has the potential for high data rates, ranging and positioning. A UWB communication system's design requires knowledge regarding the channel. This thesis investigates the effect that different antenna orientations have on the wireless channel; in an indoor office environment. Channel reciprocity, path loss, body shadowing and spatial correlation are investigated for the frequency band 3.1 to 10.6 GHz. The measurements are performed in the frequency domain. UWB channels are shown to be highly reciprocal in all instances. Path loss versus distance was determined for line of sight (LOS) and non-line of sight (NLOS) scenarios. Body shadowing is measured for an average Caucasian male, and the root mean square (RMS) delay spread and received power loss plotted spatially. The spatial correlation is investigated using a two dimensional grid. A comparison between the horizontal and vertical polarization is made.



UWB, Measurement, Channel, Office, Polarization, Horizontal, Vertical