Systems Engineering and Electronics ›› 2020, Vol. 42 ›› Issue (5): 1160-1165.doi: 10.3969/j.issn.1001-506X.2020.05.25

Previous Articles     Next Articles

Physical-layer security wireless transmission synthesis scheme for proximal desired receiver user and eavesdropper

Jianbang GAO1,2(), Zhaohui YUAN1(), Bin QIU3()   

  1. 1. School of Automation, Northwestern Polytechnical University, Xi'an 710072, China
    2. School of Electronic Engineering, Xi'an Shiyou University, Xi'an 710065, China
    3. School of Electronics and Information, Northwestern Polytechnical University, Xi'an 710072, China
  • Received:2019-10-28 Online:2020-04-30 Published:2020-04-30
  • Supported by:
    国家自然科学基金(51505381);国家自然科学基金(51874238);国家自然科学基金(51275423)

Abstract:

For the secure wireless communication of the proximal desired receiver user and the eavesdropper, i.e., channels of the legitimate user and the eavesdropper are highly correlated, a physical-layer security wireless transmission synthesis based on frequency diverse arrays is proposed. Firstly, for the physical layer security problems for knowing locations of the eavesdropper, the optimal frequency in the crement across transmit element is obtained by the adaptive genetic algorithm to maximize the secrecy capacity. And then the artificial noise and the design projection matrix are added to reduce the signal-to-noise ratio of the eavesdropper user. Furthermore, the proposed approach is extended to the case of the unknown location of the eavesdropper. Finally, numerical results show that the proposed method can provide the satisfactory secrecy capacity.

Key words: physical-layer security, frequency diverse array, artificial noise

CLC Number: 

[an error occurred while processing this directive]