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Abstract Unmanned aerial vehicles (UAVs) are being used to develop wireless technologies for ground communications. These technologies are continuously advancing and are expected to improve further in the near future. Conventional communication systems need sophisticated and costly infrastructure, along with time-consuming installation processes. In contrast, a UAV-assisted wireless communication system ensures a cost-effective wireless connection to devices without the requirement for cumbersome infrastructure installation. Wireless communication systems integrated with low-altitude UAVs offer faster deployment, increased mobility, easy re-configuration, and are expected to provide higher quality communication channels with shorter range line-of-sight (LOS) connectivity compared to High Altitude Platforms (HAPs) like hot air balloons or terrestrial systems. Nevertheless, the effectiveness of the UAV-to-Ground system is impeded by unforeseeable obstacles, which impact the integrity of the communication connection between drones and ground users. This letter explores the application of adaptive modulation and coding (AMC) in Aerial-to-Ground (A2G) networks. Our objective is to assess the network capacity and downlink data rates, as well as achieve optimal performance. This study also covers a comprehensive assessment of path loss, Signal-to-Noise ratio, delay, and throughput performance on terrestrial users linked to airborne drones in various environments. In addition, we conducted research on the link parameters that control the switching of modulation and coding rates on the downlink of the A2G channel.
Gadhiraju et al. (Thu,) studied this question.