Visible to the public Physical Layer Security Communication of Cognitive UAV Mobile Relay Network

TitlePhysical Layer Security Communication of Cognitive UAV Mobile Relay Network
Publication TypeConference Paper
Year of Publication2021
AuthorsShengnan, Cao, Xiangdong, Jia, Yixuan, Guo, Yuhua, Zhao
Conference Name2021 7th International Symposium on Mechatronics and Industrial Informatics (ISMII)
KeywordsApproximation algorithms, average security rate, Cognitive Radio Network, Cognitive Radio Security, Mechatronics, mobile relay, physical layer secure, physical layer security, pubcrawl, radio transmitters, relay networks (telecommunication), resilience, Resiliency, simulation, unmanned aerial vehicle, unmanned aerial vehicles
AbstractWe consider that in order to improve the utilization rate of spectrum resources and the security rate of unmanned aerial vehicle (UAV) Communication system, a secure transmission scheme of UAV relay assisted cognitive radio network (CRN) is proposed. In the presence of primary users and eavesdroppers, the UAV acts as the decoding and forwarding mobile relay to assist the secure transmission from the source node to the legitimate destination node. This paper optimizes the flight trajectory and transmission power of the UAV relay to maximize the security rate. Since the design problem is nonconvex, the original problem is approximated to a convex constraint by constructing a surrogate function with nonconvex constraints, and an iterative algorithm based on continuous convex approximation is used to solve the problem. The simulation results show that the algorithm can effectively improve the average security rate of the secondary system and successfully optimize the UAV trajectory.
Citation Keyshengnan_physical_2021