基于M-WFRFT的物理层安全传输技术  

Physical Layer Security Technology Based Upon M-WFRFT

作　　者：李勇 宋志群[1,2] 王斌 赵彦惠[1,2] LI Yong;SONG Zhiqun;WANG Bin;ZHAO Yanhui(Science and Technology on Communication Networks Laboratory,Shijiazhuang 050081,China;The 54th Research Institute of CETC,Shijiazhuang 050081,China)

机构地区：[1]通信网信息传输与分发技术重点实验室,河北石家庄050081 [2]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电通信技术》2021年第3期319-323,共5页Radio Communications Technology

基　　金：国家重点研发计划。

摘　　要：针对无线通信物理安全问题,提出基于多项加权分数傅里叶变换的物理层安全(Multiple Weighted Type Fractional Fourier Transform,M-WFRFT)传输技术。首先给出了M-WFRFT的概念和两个重要性质,利用该技术搭建了无线通信物理层安全传输架构,可以在收发两端变换参数互异情况下正常解调信号,并降低接收端变换参数被截获情况下信息被破译的风险。通过数值仿真证明了该算法的有效性。To solve the problem of physical layer security(PLS),we proposed the physical layer security technology based on multiple weighted type fractional Fourier transform(M-WFRFT)in this paper.We first provide the concept of M-WFRFT and two important properties.Employing this technology,we design the wireless communication system model over physical layer security transmission.It can guarantee the physical layer security to demodulate signals with the transmitter and receiver of different transform parameters.Numerical simulations demonstrates that the proposed algorithm can avoid signal jamming and increase the performance of physical layer security.

关 键 词：M-WFRFT 物理层安全 变换参数 

分 类 号：TP926[自动化与计算机技术]