Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2018, Vol. 41 ›› Issue (4): 9-15.doi: 10.13190/j.jbupt.2018-030

• Papers • Previous Articles     Next Articles

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

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

CLC Number: