北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2018, Vol. 41 ›› Issue (4): 9-15.doi: 10.13190/j.jbupt.2018-030

• 论文 • 上一篇    下一篇

基于极化多维星座调制的OFDM物理层安全通信机制

刘喆1, 张巧遇2,3, 程明智4   

  1. 1. 国家保密科技测评中心, 北京 100044;
    2. 中国科学院信息工程研究所, 北京 100093;
    3. 中国科学院大学 网络空间安全学院, 北京 100049;
    4. 北京印刷学院 新媒体学院, 北京 102600
  • 收稿日期:2018-02-02 出版日期:2018-08-28 发布日期:2018-10-09
  • 作者简介:刘喆(1983-),男,高级工程师,E-mail:ezhe4924@sina.com.
  • 基金资助:
    国家自然科学基金项目(61501458);北京市高等学校高水平人才交叉培养"实培计划"项目(2016-28)

A Physical Layer Secure Communication Mechanism Based on Multidimensional Constellation

LIU Zhe1, ZHANG Qiao-yu2,3, CHENG Ming-zhi4   

  1. 1. National Secrecy Science and Technology Evaluation Center, Beijing 100044, China;
    2. Institute of Information Engineering, Chinese Academy of Sciences, Beijing 100093, China;
    3. School of Cyber Security, Chinese Academy of Sciences, Beijing 100049, China;
    4. School of New Media, Beijing Institute of Graphic Communication, Beijing 102600, China
  • Received:2018-02-02 Online:2018-08-28 Published:2018-10-09

摘要: 提出了一种基于极化多维星座的正交频分复用(OFDM)物理层安全通信机制,通过高维星座设计,可以有效地加密调制信息,保护无线通信的调制信息不被发现,从而保证无线通信的安全.在此基础上,推导并仿真了系统误码率性能和频谱利用率.仿真结果证明,OFDM极化多维星座调制方案可以有效防止窃听者获取调制信息,并且其误符号率及频谱效率都显著优于传统OFDM-QAM调制.

关键词: 物理层安全, 多维星座, 正交频分复用, 误符号率, 频谱效率

Abstract: An orthogonal frequency division multiplexing (OFDM) multi-carrier physical layer secure communication mechanism based on multi-dimensional constellation was presented, which can effectively prevent the modulation information of wireless communication from being eavesdropped, therefore, the security communication is guaranteed. Based on multi-dimensional constellation, the system symbol error rate performance and spectrum utilization are derived and simulated. Simulations show that the multi-carrier polarization state-amplitude-phase modulation scheme can effectively prevent the eavesdropper from obtaining the modulation information, and its symbol error rate and spectral efficiency are significantly better than the traditional OFDM-QAM modulation.

Key words: physical layer security, multi-dimensional constellation, orthogonal frequency division multiplexing, symbol error rate, spectral efficiency

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