A Tutorial on UAVs for Wireless Networks: Applications, Challenges, and Open Problems
Mohammad Mozaffari, Walid Saad, Mehdi Bennis, Young-Han Nam, and, Merouane Debbah

TL;DR
This tutorial reviews UAVs' roles in wireless networks, highlighting applications, challenges, and open research problems, and discusses analytical tools for system design and optimization.
Contribution
It provides a comprehensive overview of UAV-enabled wireless systems, detailing challenges, tradeoffs, and potential research directions with analytical frameworks and mathematical tools.
Findings
UAVs can enhance coverage, capacity, and energy efficiency in wireless networks.
Key challenges include 3D deployment, channel modeling, and energy management.
Various analytical tools can address UAV-specific problems.
Abstract
The use of flying platforms such as unmanned aerial vehicles (UAVs), popularly known as drones, is rapidly growing. In particular, with their inherent attributes such as mobility, flexibility, and adaptive altitude, UAVs admit several key potential applications in wireless systems. On the one hand, UAVs can be used as aerial base stations to enhance coverage, capacity, reliability, and energy efficiency of wireless networks. On the other hand, UAVs can operate as flying mobile terminals within a cellular network. Such cellular-connected UAVs can enable several applications ranging from real-time video streaming to item delivery. In this paper, a comprehensive tutorial on the potential benefits and applications of UAVs in wireless communications is presented. Moreover, the important challenges and the fundamental tradeoffs in UAV-enabled wireless networks are thoroughly investigated. In…
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