Physical Layer Security for NOMA Transmission in mmWave Drone Networks
نویسندگان
چکیده
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 in mmWave UAV-assisted network, investigate respective secrecy-rate performance rigorously. particular, propose protected-zone approach enhance by preventing most vulnerable subregion (outside user region) from receivers. rates are then derived analytically as function particular protected zone, which verifies great rate improvements through optimizing shape zone use. Furthermore, show that optimal for links appears between protecting angle versus distance dimension, would otherwise form protect solely dimension sub-6 GHz links. We also numerically evaluate impact power, size, UAV altitude on improvement sake practical deployments.
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ژورنال
عنوان ژورنال: IEEE Transactions on Vehicular Technology
سال: 2021
ISSN: ['0018-9545', '1939-9359']
DOI: https://doi.org/10.1109/tvt.2021.3066350