摘要
涡旋波通信利用轨道角动量内在正交性,较传统电磁通信方式具有更高通信容量,但在信息安全问题愈加严峻的今天需探索其与多种加密方式的适配性。本文使用MATLAB软件搭建仿真高斯信道,选择Caesar加密算法、Playfair加密算法、数据加密标准(DES)与高级加密标准(AES)对涡旋波进行加密,比较其在接收处的误码率与平面电磁波的差异,发现涡旋波通信系统通过增加信号空间相位提高了通信可靠性,同时加密算法会从两方面影响通信质量的可靠性,一是算法使密文之间产生联系,二是算法对明文有格式要求,而后一种对通信误码率的影响更大。
Vortex wave communication uses the internal orthogonality of orbital angular momentum and has higher communication capacity than traditional electromagnetic communication.With the serious problem of information security,it is necessary to study the compatibility of vortex wave communication with various encryption methods.This paper uses MATLAB software to build simulation Gaussian channel,and chooses Caesar encryption algorithm,Playfair efncryption algorithm,DES and AES to encrypt vortex waves symmetrically,to find the bit error rate difference at the receiving point compared with planar electromagnetic wave.Finally,it is found that the communication reliability of vortex wave communication system is higher by increasing the spatial phase of signal,and the encryption algorithm will affect the reliability of communication quality from two aspects:one is that the encryption algorithm makes connections between ciphertexts,the other is that the algorithm has format requirements on the plaintext.The latter has a greater impact on the communication bit error rate.
作者
许正馨
林琳
王君诚
侯超
程稷
XU Zheng-xin;LIN Lin;WANG Jun-cheng;HOU Chao;CHENG Ji(China Mobile Group Anhui Co.,Ltd.,Hefei 230088,China)
出处
《电信工程技术与标准化》
2025年第2期47-52,共6页
Telecom Engineering Technics and Standardization
