An Absolute Secure Wire-Line Communication Method Against Wiretapper

Sanjun Liu, Meng Ma, Yunzhou Li, Yingyang Chen, Bingli Jiao

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


This letter proposes a security method for wire-line point-to-point communication based on the information theory. The proposed system replaces the conventional receiver by a full-duplex node which can, not only, receive the confidential signal, but also deliver artificial noise to impair the channel of wiretapper observation between the two legitimate partners. The power ratio of the signal to the artificial noise is a key factor for guaranteeing absolute secure communication. The theoretical work is carried out in the model of physical layer security on the assumption that the wiretapper can perform the optimum detection, including with colluding structure. Numerical results are presented for demonstrating the effectiveness of the proposed approach.

Original languageEnglish
Article number7776846
Pages (from-to)536-539
Number of pages4
JournalIEEE Communications Letters
Issue number3
StatePublished - Mar 2017
Externally publishedYes


  • Physical layer security
  • absolute security
  • artificial noise
  • full duplex


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