Wireless technology enters into the recent advancement by incorporating the embedded systems to develop vehicular communication with high performance. In vehicular ad hoc networks (VANETs) due to high-speed vehicles several challenges occurred like vehicle integrity management, speed management and effective data collection with road traffic event management. To monitor the huge number of vehicles in an efficient way in a large-scale coverage area in recent times unmanned aerial vehicles (UAVs) are developed. This technology provides effective communication among the ground level and the air medium. To attend high quality communication of the vehicles in this article dynamic mobility based effective load balancing and QoS aware network selection (DELQNU) among the UAVs are constructed. The core modules of this proposed DELQNU are UAV network model, mobility model and QoS model. Using these ideas monitoring a huge number of vehicles even at the densely populated and high-speed technology becomes possible and highly efficient. The implementation of this network is constructed in NS3 software and SUMO and the parameters which are calculated for this analysis are packet delivery ratio, throughput, delay, routing overhead and energy efficiency. From the final outcome it is proven that DELQNU attends maximum results in terms of delivery ratio and throughout when compared with the earlier baseline methodologies.

Vehicular ad hoc networks (VANETs), Dynamic Mobility, Effective Load Balancing, QoS-Aware Network Selection and Unmanned Aerial Vehicles (UAVs).