In the present paper, we investigate the performance of the simultaneous wireless information and power transfer (SWIPT) based cooperative cognitive radio networks (CCRNs). In particular, the outage probability is derived in the closed-form expressions under the opportunistic partial relay selection. Different from the conventional CRNs in which the transmit power of the secondary transmitters count merely on the aggregate interference measured on the primary networks, the transmit power of the SWIPT-enabled transmitters is also constrained by the harvested energy. As a result, the mathematical framework involves more correlated random variables and, thus, is of higher complexity. Monte Carlo simulations are given to corroborate the accuracy of the mathematical analysis and to shed light on the behavior of the OP with respect to several important parameters, e.g., the transmit power and the number of relays. Our findings illustrate that increasing the transmit power and/or the number of relays is beneficial for the outage probability.

Communication and Signal Processing Research Group Faculty of Electrical and Electronics Engineering Ton Duc Thang University Ho Chi Minh City 700000 Vietnam

Department of Molecular Sciences and Nanosystems Ca' Foscari University of Venice Via Torino 155 30123 Venezia VE Italy

Faculty of Automobile Technology Van Lang University Ho Chi Minh City 700000 Vietnam

Faculty of Automotive Mechanical Electrical and Electronic Engineering Nguyen Tat Thanh University Ho Chi Minh City 700000 Vietnam

Faculty of Electrical Engineering and Computer Science VSB Technical University of Ostrava 708 00 Ostrava Czech Republic

Faculty of Electronics Technology Industrial University of Ho Chi Minh City Ho Chi Minh City 700000 Vietnam

Institute XLIM University of Poitiers 86000 Poitiers France

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