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Keywords = UAV (unmmaned aerial vehicle)

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14 pages, 2962 KiB  
Article
Deep Learning-Aided Downlink Beamforming Design and Uplink Power Allocation for UAV Wireless Communications with LoRa
by Yeong-Rok Kim, Jun-Hyun Park, Jae-Mo Kang, Dong-Woo Lim and Kyu-Min Kang
Appl. Sci. 2022, 12(10), 4826; https://doi.org/10.3390/app12104826 - 10 May 2022
Cited by 3 | Viewed by 2919
Abstract
In this paper, we consider an unmanned aerial vehicle (UAV) wireless communication system where a base station (BS) equipped multi antennas communicates with multiple UAVs, each equipped with a single antenna, using the LoRa (Long Range) modulation. The traditional approaches for downlink beamforming [...] Read more.
In this paper, we consider an unmanned aerial vehicle (UAV) wireless communication system where a base station (BS) equipped multi antennas communicates with multiple UAVs, each equipped with a single antenna, using the LoRa (Long Range) modulation. The traditional approaches for downlink beamforming design or uplink power allocation rely on the convex optimization technique, which is prohibitive in practice or even infeasible for the UAVs with limited computing capabilities, because the corresponding convex optimization problems (such as second-order cone programming (SOCP) and linear programming (LP)) requiring a non-negligible complexity need to be re-solved many times while the UAVs move. To address this issue, we propose novel schemes for beamforming design for downlink transmission from the BS to the UAVs and power allocation for uplink transmission from the UAVs to the BS, respectively, based on deep learning. Numerical results demonstrate a constructed deep neural network (DNN) can predict the optimal value of the downlink beamforming or the uplink power allocation with low complexity and high accuracy. Full article
(This article belongs to the Special Issue Perception, Navigation, and Control for Unmanned Aerial Vehicles)
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