Non-orthogonal multiple access (NOMA) has been viewed as a potential candidate for the upcoming generation of wireless communication systems. Comparing to traditional orthogonal (OMA), multiplexing users in same time-frequency resource block can increase number served and improve efficiency systems terms spectral efficiency. Nevertheless, from security view-point, when are utilizing resource, t...

The non-orthogonal multiple access (NOMA) and millimeter-wave (mmWave) transmission enable the unmanned aerial vehicle (UAV) assisted wireless networks to provide broadband connectivity over densely packed urban areas. presence of malicious receivers, however, compromise security UAV-to-ground communications links, thereby degrading secrecy rates. In this work, we consider a NOMA-based strategy...