from the early days of unmanned aerial vehicles (uavs) to their integration into wireless networks

Introduction/purpose: this paper provides an overview of unmanned aerial vehicles (uavs) from their early days to their integration into modern wireless networks. methods: it analyzes, synthesizes and compares the uavs development technologies throughout their history with significant aspects of their integration in wireless communication networks. results: important aspects of wireless communications as one of the key technologies for uavs are presented. next, energy efficiency as a research path for uavs is considered. the paper also emphasizes the present state in this area as well as what the future of uavs in communications will be. conclusion: uavs are important not only for widespread military usage in various combat operations and warfare environment, but also for other purposes such as their integration in 5g networks.