Abstract In the actual bearing-only passive UAV positioning system, both controller and receiver are in non-standard positions. Three-point cannot be carried out simply by a geometric algorithm. This study introduces only information transmission without considering increasing complexity of system sensors. When circular formation conical UAVs abnormal positions to locate unit adjust it standard...

Unmanned aerial vehicles (UAVs) are foreseen to constitute promising airborne communication devices as a benefit of their superior channel quality. But UAV-to-ground (U2G) communications vulnerable eavesdropping. Hence, we conceive sophisticated physical layer security solution for improving the secrecy rate multi-antenna aided U2G systems. Explicitly, MIMO wiretap channels is derived by using ...

This study shows an enhancement of IoT which gets sensor data and performs real-time face recognition to screen physical areas find strange situations send alarm mail the client make remedial moves avoid any potential misfortune in environment. Sensor is pushed onto local system GoDaddy Cloud, whenever camera detects a person optimize Physical Location Monitoring System by reducing bandwidth re...

In this letter, the problem of unmanned aerial vehicle (UAV) deployment, power allocation, and bandwidth allocation is investigated for a UAV-assisted wireless system operating at terahertz (THz) frequencies. studied model, one UAV can service ground users using THz frequency band. However, highly uncertain channel will introduce new challenges to location, user power, optimization problems. Th...