  Unmanned aerial vehicles (UAVs) are emerging as enablers for supporting many
applications and services, such as precision agriculture, search and rescue,
temporary network deployment or coverage extension, and security. UAVs are
being considered for integration into emerging 5G networks as aerial users or
network support nodes. We propose to leverage UAVs in 5G to assist in the
prevention, detection, and recovery of attacks on 5G networks. Specifically, we
consider jamming, spoofing, eavesdropping and the corresponding mitigation
mechanisms that are enabled by the versatility of UAVs. We introduce the hot
zone, safe zone and UAV-based secondary authorization entity, among others, to
increase the resilience and confidentiality of 5G radio access networks and
services. We present simulation results and discuss open issues and research
directions, including the need for experimental evaluation and a research
platform for prototyping and testing the proposed technologies.
