Secrecy Outage Performance for SIMO Underlay Cognitive Radio Systems with Generalized Selection Combining over Nakagami-m Channels

Hongjiang Lei, Huan Zhang, Imran Shafique Ansari, Chao Gao, Yongcai Guo, Gaofeng Pan, Khalid Qaraqe

Research output: Contribution to journalArticle

46 Citations (Scopus)


This paper considers a single-input-multiple-output underlay cognitive wiretap system over Nakagami-m channels with generalized selection combining, where confidential messages transmitted from a single-antenna transmitter to a multiple-antenna legitimate receiver are overheard by a multiple-antenna eavesdropper. Passive eavesdropping scenario is considered in this work, while the channel state information of the eavesdropping channel is not available at the secondary transmitter. We derived the closed-form expression for the exact secrecy outage probability. Simulations are conducted to validate the accuracy of our proposed analytical models.

Original languageEnglish
Article number7422832
Pages (from-to)10126-10132
Number of pages7
JournalIEEE Transactions on Vehicular Technology
Issue number12
Publication statusPublished - 1 Dec 2016



  • Cognitive radio
  • multiple antennas
  • Nakagami-mfading
  • physical layer security
  • secrecy outage probability (SOP)

ASJC Scopus subject areas

  • Automotive Engineering
  • Aerospace Engineering
  • Computer Networks and Communications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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