Millimeter wave beams coordination and antenna array height effect

What is it about?

This research paper reviewed two scenarios implemented using Matlab (V.2021a); The first scenario represents taking several heights of the antenna set. This scenario is determined the best heights to serve users in the areas near and far from the Tower and within similar Azimuth Angle of Arrival (AOA) angles. The second scenario adopted is the effect of the users’ distance from the Tower and at different AOAs. The antenna height is fixed according to the results of the first scenario. The antenna array height for the second scenario is fixed at the peak value obtained for throughput. The simulation results obtained from the two scenarios confirmed the effect of antenna array height on the width of the beam coverage area for users near and far from the Tower. Increasing and decreasing the height can play a positive or negative role in the throughput value. Choosing the highest value for the throughput enables coordination between mmWave beams in choosing the best height that can serve the user. The process of coordinating mmWave beams at different heights of the antenna array reduces the value of IUI by 63.64%.

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Why is it important?

Beamforming technology reduces interference and path loss due to its directional property. The problem of Inter User Interference (IUI) is a critical factor that limits the system performance. It is also considered one of the main problems facing communication networks today. This problem exacerbates the narrowness of the spaces near the Tower and the width of the beam coverage area. Accordingly, IUI is considered more dangerous in close areas to the Tower than in far areas from it. The effect of antenna array height on the width of the beam coverage area has been highlighted in this paper

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