Abstract
The effect of human body and indoor environment in the ultra wide band (UWB) radio propagation channel is presented. Time domain measurements are performed in the body-centric wireless sensor laboratory, Queen Mary, University of London. In order to characterize the on-body radio channel, the transmitter has been placed on the belt, and the receiver is moved on 33 different Line of Sight (LOS) positions on the human candidate. Statistical path loss, and time domain parameters [mean delay and root mean square (RMS) delay spread] are extracted from measurement data. Due to multipath effect, the path loss exponent is smaller than the one measured in an anechoic chamber. Three different thresholds have been applied to calculate the time dispersion parameters. Results show reduction of delay spread if higher threshold is used. (4 pages)
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