Performance Analysis of Cognitive Two-Way Networks with Interference from Primary User over Nakagami-m Fading Channels

  • Hoang Van Toan Le Quy Don Technical University, Vietnam
  • Vo Nguyen Quoc Bao Posts and Telecommunications Institute of Technology, Vietnam


A cognitive underlay two-way relay network taking into account interference links from primary transmitter to secondary receivers over Nakagami-m fading channels is analyzed in this article. In this model, a secondary system including two terminal nodes exchanges data through a decode-and-forward (DF) relay node. Under the underlay approach, all secondary transmitter must adjust transmit power to protect the primary communications. We derive the exact and asymptotic closed-form expression for the secondary system outage probability over Nakagami-m fading channels showing the system diversity. Monte-Carlo simulation are performed to verify the analysis results as well as to show the system characteristics


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How to Cite
TOAN, Hoang Van; QUOC BAO, Vo Nguyen. Performance Analysis of Cognitive Two-Way Networks with Interference from Primary User over Nakagami-m Fading Channels. Journal of Science and Technology: Issue on Information and Communications Technology, [S.l.], v. 3, n. 1, p. 29-37, mar. 2017. ISSN 1859-1531. Available at: <>. Date accessed: 25 mar. 2023. doi: