摘要
随着无线通信网络在全球范围内蓬勃发展,无线通信网络中的隐私和安全问题引起了广泛的研究。物理层安全技术方案已被证明是解决未来网络安全性能的重要方案,有望满足日益增长的用户安全通信需求。为了防止窃听者窃取保密信息,在合法信道和窃听信道的信道状态信息(Channel State Information,CSI)已知的情况下,文章提出一种抗窃听物理层安全预编码方案。该方案能够有效提升合法信道的信道容量,在合法用户(Bob)和窃听用户(Eve)之间产生容量差以保证信息的安全传输,同时使得合法用户的中断概率远低于窃听用户,从而保证信息传输的可靠性。仿真结果证明了所提方案的有效性。
With the rapid development of wireless communication networks around the world,privacy and security issues in wireless communication networks have attracted extensive research.Physical layer security technology has been proved to be an important solution to future network security performance,which is expected to meet the growing user security communication needs.In order to prevent eavesdroppers from stealing confidential information,an anti-eavesdropping physical layer security precoding scheme is proposed under the condition that the channel state information(CSI)of the legitimate channel and the eavesdropping channel is known.It can effectively improve the channel capacity of the legitimate channel,and generate a capacity difference between the legitimate user(Bob)and the eavesdropping user(Eve)to ensure the safe transmission of information.At the same time,the outage probability of the legitimate user is much lower than that of the eavesdropping user to ensure the reliability of information transmission.Simulation results demonstrate the effectiveness of the proposed scheme.
作者
傅洪亮
康超男
韩伟良
FU Hongliang;KANG Chaonan;HAN Weiliang(School of Information Science and Engineering,Henan University of Technology,Zhengzhou 450001,China)
出处
《数字通信世界》
2023年第3期30-32,共3页
Digital Communication World
关键词
物理层安全
预编码
窃听
广义瑞利商
physical layer security
precoding
eavesdropping
generalized rayleigh quotient
