Open AccessSecure transmission strategy of multi UAV relays in jamming environment
Author(s) -
Lüxi Yang,
Shengli Gao,
ZiYue Liu,
ZhuoJun He
Publication year - 2022
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2187/1/012015
Subject(s) - jamming , computer science , physical layer , transmission (telecommunications) , interference (communication) , optimization problem , channel (broadcasting) , trajectory optimization , wireless , resource allocation , communications system , electronic engineering , real time computing , trajectory , computer network , telecommunications , engineering , algorithm , physics , thermodynamics , astronomy
This paper studies a multi UAV relays communication system based on secure transmission strategy in jamming environment. In the multi UAV relays communication system with interference, we use the physical layer security technology based on the physical layer to maximize the minimum average rate by optimizing the flight trajectory and resource allocation of the signal source and UAV relays, and adjust the channel state information of the legal communication channel, so as to improve the communication performance of the legal channel. Since the optimization problem and constraints are nonconvex and cannot be solved directly, we decompose it into two sub optimization problems: interference optimization and strategy optimization, which are solved respectively. Finally, the joint optimal solution of the original optimization problem is obtained by alternating iterative optimization, the simulation results show that by jointly optimizing the transmission power and flight trajectory of signal source and UAV relays, the influence of interference source on wireless communication is reduced and safer communication is realized.