A Physical Security Technology Based upon Doubly Multiple Parameters Weighted Fractional Fourier Transform  

作　　者：Li Yong Sun Teng Sha Xuejun Song Zhiqun Wang Bin 

机构地区：[1]Science and Technology on Communication Networks Laboratory,Shijiazhuang 050081,China [2]The 54th Research Institute of China Electronics Technology Group Corporation,Shijiazhuang 050081,China [3]Harbin Institute of Technology,Harbin 150001,China

出　　处：《China Communications》2024年第10期200-209,共10页中国通信（英文版）

摘　　要：Enhancing the security of the wireless communication is necessary to guarantee the reliable of the data transmission, due to the broadcast nature of wireless channels. In this paper, we provide a novel technology referred to as doubly multiple parameters weighted fractional Fourier transform(DMWFRFT), which can strengthen the physical layer security of wireless communication. This paper introduces the concept of DM-WFRFT based on multiple parameters WFRFT(MP-WFRFT), and then presents its four properties. Based on these properties, the parameters decryption probability is analyzed in terms of the number of parameters. The number of parameters for DM-WFRFT is more than that of the MP-WFRFT,which indicates that the proposed scheme can further strengthen the the physical layer security. Lastly, some numerical simulations are carried out to illustrate that the efficiency of proposed DM-WFRFT is related to preventing eavesdropping, and the effect of parameters variety on the system performance is associated with the bit error ratio(BER).

关 键 词：doubly multiple parameters weighted fractional Fourier transform(DM-WFRFT) physical layer security transform parameters variety 

分 类 号：TN918[电子电信—通信与信息系统]