The authors proposed a novel mobility model, which takes into account the attraction factor for setting up the way-points for UAV movements. The authors used NS-3 based simulations to present the effectiveness of their proposed solution and compared their results with the existing mobility models on the basis of coverage, throughput, latency, and the allocated UAVs. In spite of providing a large set of applications and wide coverage, data dissemination in FANETs remains a concern because of the high dynamics of aerial vehicles. Additionally, frequent topology changes and 3D space movement make routing a tedious task in FANETs. To highlight this issue and understand the limits of routing in FANETs, [PERSON] et al. [4] presented studied existing routing protocols for FANETs. The authors suggested that topology-based routing protocols are generally better than the other rival protocols in terms of throughput, end-to-end delay, and network load when applied to UAV ad hoc system. From their study, it can be highlighted that the topology-based routing protocols can be used as a base for developing applications served by FANETs. As discussed earlier, surveillance has been one of the major applications of UAVs. Such an application requires efficient deployment model for setting up the communication between the UAVs and the ground station. To address this issue, [PERSON] et al. [5] proposed a network infrastructure to support the operation of multiple surveillance drones. Their proposed model uses the existing MAVLink protocol, which is considered as a strong benchmark for UAVs to ground communications. The authors demonstrated the effectiveness of their proposed setup by using STIL simulations as well as on-field testing. Their work can be helpful in understanding the limits of UAV-deployment and follow-ups for user-interface aspects. Finally, we are happy with the acceptance ratio, technical depth, and reach of this special section, and also hope that it will further advance the understanding of drone communications. At last, we want to extend our sincere thanks to all the authors and reviewers for the tremendous efforts, and the Editor-in-Chief and staff members of Drones-MDPI for their collective efforts in supporting this special issue. ## References  
* [PERSON] et al. [2019] [PERSON]; [PERSON]; [PERSON] A Hybrid Communication Scheme for Efficient and Low-Cost Deployment of Future Flying Ad-Hoc Network (FANET). _Drones_**2019**, \(3\), 16. [CrossRef]
* [PERSON] et al. [2019] [PERSON]; [PERSON]; [PERSON]; [PERSON] Collaboration of Drone and Internet of Public Safety Things in Smart Cities: An Overview of QoS and Network Performance Optimization. _Drones_**2019**, \(3\), 13. [CrossRef]
* [PERSON] [2018] [PERSON]; [PERSON] An Efficient Mobility Model for Improving Transmissions in Multi-UAVs Enabled WSNs. _Drones_**2018**, \(2\), 31. [CrossRef]
* [PERSON] et al. [2018] [PERSON]; [PERSON]; [PERSON]; [PERSON] [PERSON] Dynamic Routing in Flying Ad-Hoc Networks Using Topology-Based Routing Protocols. _Drones_**2018**, \(2\), 27. [CrossRef]
* [PERSON] et al. [2018] [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] [PERSON] A Practical Deployment of a Communication Infrastructure to Support the Employment of Multiple Surveillance Drones Systems. _Drones_**2018**, \(2\), 26. [CrossRef]