随机移动终端协同干扰下的安全传输增强机制  

Secure Transmission Enhancement Mechanism of Terminal Cooperative Jamming Based on Random Mobility

作　　者：张腾月 文红 唐杰 宋欢欢 ZHANG Tengyue;WEN Hong;TANG Jie;SONG Huanhuan(School of Aeronautics and Astronautics,University of Electronic Science and Technology of China Chengdu 611731)

机构地区：[1]电子科技大学航空航天学院,成都611731

出　　处：《电子科技大学学报》2021年第6期877-882,共6页Journal of University of Electronic Science and Technology of China

基　　金：国家重点研发计划(2018YFB0904900,2018YFB0904905)。

摘　　要：终端用户移动是移动网络的一个主要特征。目前,关于物理层安全的研究很少考虑用户移动性对通信安全性能的影响。该文研究了随机移动用户的协同干扰物理层安全机制,推导了随机移动场景中协同干扰下的遍历安全容量,并与静态场景下的协同干扰方案进行了比较。通过数学证明,揭示了具体参数对安全性能的影响。数值结果表明,随机移动场景下协同干扰机制的安全容量和安全能效均有提高,实现了传输安全性的增强。User mobility is a major feature of wireless networks.At present,the research on physical layer security rarely considers the impact of user mobility on communication security performance.This paper studies the physical layer security mechanism of cooperative jamming for random mobile users,derives the ergodic security capacity under cooperative jamming in random mobile scenarios,and compares it with the cooperative jamming scheme in static scenarios.The influence of specific parameters on the security performance is clearly revealed by strict mathematical proof.Numerical results show that the ergodic security capacity and secure energy efficiency(EE)of the cooperative jamming scheme in random mobile scenarios are improved,and the transmission security is enhanced.

关 键 词：协同干扰 遍历安全容量 物理层安全 随机移动模型 安全能效 

分 类 号：TN92[电子电信—通信与信息系统]