Secure MISO-NOMA Transmission with Artificial Noise

Lu Lv, Zhiguo Ding, Qiang Ni, Jian Chen

Research output: Contribution to journalArticlepeer-review

136 Scopus citations


This correspondence studies a new secrecy beamforming (SBF) scheme for multiple-input single-output non-orthogonal multiple access (MISO-NOMA) systems. In particular, the proposed SBF scheme efficiently exploits artificial noise to protect the confidential information of two NOMA assisted legitimate users, such that only the eavesdropper's channel is degraded. Considering a practical assumption of the imperfect worst-case successive interference cancellation which is a unique character in employing NOMA transmission, we derive a closed-form expression for the secrecy outage probability to characterize the secrecy performance. After that, we carry out an analysis of secrecy diversity order to provide further insights about secure MISO-NOMA transmission. Numerical results are provided to demonstrate the accuracy of the developed analytical results and the effectiveness of the proposed SBF scheme.

Original languageBritish English
Pages (from-to)6700-6705
Number of pages6
JournalIEEE Transactions on Vehicular Technology
Issue number7
StatePublished - Jul 2018


  • artificial noise
  • multiple-input single-output
  • Non-orthogonal multiple access
  • physical layer security


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