Physical layer security (PLS) has emerged as a new concept and powerful alternative that
can complement and may even replace encryption-based approaches, which entail many …

The explosive data traffic and connections in 5G networks require the use of non-orthogonal
multiple access (NOMA) to accommodate more users. Unmanned aerial vehicle (UAV) can …

Unmanned aerial vehicle (UAV) can be utilized as a relay to connect nodes with long
distance, which can achieve significant throughput gain owing to its mobility and line-of-sight …

When natural disasters strike, the coverage for Internet of Things (IoT) may be severely
destroyed, due to the damaged communications infrastructure. Unmanned aerial vehicles …

The effective combination of physical layer security communication and intelligent reflecting
surface (IRS) technology has recently attracted extensive attention to improve the system …

In a downlink non-orthogonal multiple access (NOMA) system, the reliable transmission of
cell-edge users cannot be guaranteed due to severe channel fading. On the other hand, the …

In this paper, we investigate a secure communication system, where one transmitter sends
some confidential message to one receiver, under the smart attack from one unmanned …

Non-orthogonal multiple access (NOMA) has been developed as a key multi-access
technique for 5G. However, secure transmission remains a challenge in NOMA. Especially …

Time-varying requirements of users on communication push mobile operators to increase
density of base stations. However, the dense deployment of conventional static base …

Digital signal modulation recognition is meaningful for military application and civilian
application. In the non-cooperation communication scenario, digital signal modulation …