Trajectory Planning Method For Privacy Protection Of UAV Location Information And Communication Content

Due to the wide use of UAV in various fields,the research on UAV communication network has attracted much attention in recent years.Due to the uncertainty of UAV flight environment and the open characteristics of wireless channel,UAV is vulnerable to attack and eavesdropping,especially the potential eavesdropper intercepts and decrypts information,resulting in privacy leakage.Encryption is generally used to solve the problem of eavesdropping,but it brings extra energy consumption,which is not unbearable for UAVs with limited airborne energy.As a new technology which is different from the traditional anti eavesdropping means,physical layer security technology has been widely concerned.It will not consume extra calculation power to protect the privacy.Therefore,this paper considers to enhance the security of UAV communication network through physical layer security technology.In the wireless channel,we can improve the performance of secure communication by changing the state of the wireless channel,and we can schedule the UAV with the mobility and operability of the UAV,make it as close to the legitimate receiver as possible,and keep away from the eavesdropper,so as to improve the security of the legitimate channel and reduce the eavesdropping ability of the eavesdropping channel,to improve the security performance of the system.This paper combines the privacy protection of UAV Communication with trajectory planning and power control,and studies the privacy protection of UAV Communication system.The main contents of this paper are as follows:1.This paper introduces the research background and significance of UAV communication network’s privacy protection,the research status of physical layer security technology and communication privacy protection,and summarizes the general methods of UAV communication research based on physical layer security and shortcomings of existing work.2.Aiming at the problem of location information privacy protection of UAV,a trajectory planning algorithm based on particle swarm optimization is proposed to ensure the concealment of UAV flight position.3.Aiming at the problem of privacy protection of UAV formation communication content,combined with physical layer security technology,a UAV trajectory planning,transmitting power control and interference power control method based on problem decomposition and alternating iterative optimization is proposed,which improves the security capacity of UAV Communication.4.A UAV network simulation platform based on OMNeT++is designed and developed,and the proposed method is verified by simulation based on the platform.