Secure data rate maximization for full-duplex UAV-enabled base station  

作　　者：Chunlong He Xinjie Li Yin Huang Jianzhen Lin Gongbin Qian Xingquan Li 

机构地区：[1]Guangdong Key Laboratory of Intelligent Information Processing,Shenzhen University,Shenzhen,China [2]National Mobile Communications Research Laboratory,Southeast University,Nanjing,211189,China [3]Shenzhen Institute of Information Technology,Shenzhen,China

出　　处：《Digital Communications and Networks》2024年第5期1387-1393,共7页数字通信与网络(英文版)

基　　金：supported in part by the Shenzhen Basic Research Program under Grant 20200811192821001 and JCYJ20190808122409660,JCYJ20220531103008018;in part by the Guangdong Basic Research Program under Grant 2019A1515110358,2021A1515012097,2020ZDZX1037,2020ZDZX1021;in part by the open research fund of National Mobile Communications Research Laboratory,Southeast University(No.2021D16)。

摘　　要：Unmanned Aerial Vehicle(UAV)is an air base station featuring flexible deployment and mobility.It can significantly improve the communication quality of the system due to its line-of-sight channel connection with ground devices.However,due to the openness of UAV-to-Ground channels,the communication between ground users'devices and UAV is easily eavesdropped.In this paper,we aim to improve the security of communication system by using full-duplex UAV as a mobile air base station.The UAV sends interference signals to eavesdroppers and receives signals from ground devices.We jointly optimize the scheduling between the UAV and ground devices,the transmission power of the UAV and ground devices,as well as the trajectory of the UAV to maximize the minimum average security communication data rate.This optimization problem is mixed with integers and nonconvex expressions.Therefore,this problem is not a standard convex optimization problem,which can not be solved with standard methods.With this in mind,we propose an effective algorithm which solves this problem iteratively by applying Successive Convex Approximation(SCA),variable relaxation and substitution.Finally,numerical results demonstrate the effectiveness of the proposed algorithm.

关 键 词：UAV relay Physical layer security Full-duplex UAV Power optimization Trajectory optimization 

分 类 号：V27[航空宇航科学与技术—飞行器设计]