基于空间波束不变性的升空平台大规模MIMO导频攻击检测与消除方法  

Pilot Attack Detection and Mitigation for Airborne Massive MIMO System Based on Spatial Beam Stability

作　　者：王雨榕 刘爱军 万亮 李云坤 赵子彦 黎刚 WANG Yurong;LIU Aijun;WAN Liang;LI Yunkun;ZHAO Ziyan;LI Gang(Unit 31155 of PLA,Nanjing Jiangsu 210000,China;Army Engineering University,Nanjing Jiangsu 210000,China;Unit 31121 of PLA,Nanjing Jiangsu 210000,China)

机构地区：[1]中国人民解放军31155部队,江苏南京210000 [2]中国人民解放军陆军工程大学,江苏南京210000 [3]中国人民解放军31121部队,江苏南京210000

出　　处：《通信技术》2023年第12期1341-1349,共9页Communications Technology

基　　金：国家自然科学基金项目(62271503,62071485);国家重点研发计划(2018YFB1801103);江苏省基础研究计划项目(BK20192002)。

摘　　要：针对升空通信平台大规模多输入多输出(Multiple-Input Multiple-Output,MIMO)系统中在通信接入阶段遭受导频攻击引入的信息泄露问题,提出了一种基于空间波束不变性的导频接入攻击检测与消除方法。该方案基于用户空间波束域信道结构特征,在缺少信道先验信息的条件下使用点排序簇结构(Ordering Points to Identify the Clustering Structure,OPTICS)聚类算法,分离提取接入攻击与合法用户的波束域信道,消除接入攻击导致的信号损伤,实现合法用户信号安全传输。仿真结果表明,所提方案能够有效降低导频接入攻击对系统安全传输的影响。To address the problem of information eavesdropping introduced by pilot attack in the communication access stage of the airborne communication massive MIMO(Multiple-Input MultipleOutput)system,this paper proposes a pilot access attack detection and mitigation scheme based on spatial beam stability.Based on the user spatial stability of beam-domain channel,this scheme uses the OPTICS clustering algorithm in the absence of a prior knowledge of channels to separate and extract the beam domain channels of the access attack and the legitimate user,mitigating the signal damage caused by the access attack and thus implementing the secure transmission of the legitimate user’s signal.Simulation results indicate that the proposed scheme can mitigate the impact of pilot access attack on transmission security efficiently.

关 键 词：升空平台大规模MIMO系统 导频攻击 检测和消除 空间波束不变性 

分 类 号：TN929.5[电子电信—通信与信息系统]