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Emulating UAV Motion by Utilizing Robotic Arm for mmWave Wireless Channel Characterization

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Document pages: 12 pages

Abstract: In this paper, millimeter wave (mmWave) wireless channel characteristics(Doppler spread and path loss modeling) for Unmanned Aerial Vehicles (UAVs)assisted communication is analyzed and studied by emulating the real UAV motionusing a robotic arm. The motion considers the actual turbulence caused by thewind gusts to the UAV in the atmosphere, which is statistically modeled by thewidely used Dryden wind model. The frequency under consideration is 28 GHz inan anechoic chamber setting. A total of 11 distance points from 3.5 feet to23.5 feet in increments of 2 feet were considered in this experiment. At eachdistance point, 3 samples of data were collected for better inference purposes.In this emulated environment, it was found out that the average Doppler spreadat these different distances was around -20 Hz and +20 Hz at the noise floor of-60 dB. On the other hand, the path loss exponent was found to be 1.843. Thisstudy presents and lays out a novel framework of emulating UAV motion formmWave communication systems, which will pave the way out for future design andimplementation of next generation UAV-assisted wireless communication systems.

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