inis 19(19): e4

Research Article

Outage Performance of Cooperative Cognitive Radio Networks under Joint Constraints of Co-Channel Interference, Intercept Probability and Hardware Imperfection

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  • @ARTICLE{10.4108/eai.13-6-2019.159124,
        author={Pham Thi  Dan Ngoc and Tran  Trung Duy and Ho  Van Khuong},
        title={Outage Performance of Cooperative Cognitive Radio Networks under Joint Constraints of Co-Channel Interference, Intercept Probability and Hardware Imperfection},
        journal={EAI Endorsed Transactions on Industrial Networks and Intelligent Systems},
        volume={6},
        number={19},
        publisher={EAI},
        journal_a={INIS},
        year={2019},
        month={6},
        keywords={Physical-layer security, outage probability, intercept probability, underlay cognitive radio},
        doi={10.4108/eai.13-6-2019.159124}
    }
    
  • Pham Thi Dan Ngoc
    Tran Trung Duy
    Ho Van Khuong
    Year: 2019
    Outage Performance of Cooperative Cognitive Radio Networks under Joint Constraints of Co-Channel Interference, Intercept Probability and Hardware Imperfection
    INIS
    EAI
    DOI: 10.4108/eai.13-6-2019.159124
Pham Thi Dan Ngoc1,2, Tran Trung Duy2,*, Ho Van Khuong1
  • 1: Ho Chi Minh City University of Technology, VNU-HCM, Ho Chi Minh City, Vietnam
  • 2: Posts and Telecommunications Institute of Technology, Ho Chi Minh City, Vietnam
*Contact email: Trantrungduy@ptithcm.edu.vn

Abstract

This paper evaluates outage probability (OP) of a cooperative underlay cognitive radio network in the presence of a passive secondary eavesdropper under joint impacts of limited interference from a primary network and hardware impairments. With intercept probability constraint required for the eavesdropper and interference constraint given by a primary receiver, we derive closed-form expressions of transmit power for the secondary transmitters, including source and relays, only relying on the knowledge of statistical channel state information (CSI). Then, a relay selection method is used in the cooperative phase to enhance the OP performance of the considered protocol. For performance evaluation, we derive an exact closed-form expression of OP over Rayleigh fading channel. Finally, we perform Monte Carlo simulations to verify the derived formulas.