Cooperative NOMA: device-to-device mode and outage performance analysis
by Anh-Tu Le; Thi-Anh Hoang; Dinh-Thuan Do
International Journal of Sensor Networks (IJSNET), Vol. 33, No. 1, 2020

Abstract: In this paper, a new approach as combination of relaying model and device-to-device (D2D) scheme to perform non-orthogonal multiple access (NOMA) in the fifth generation (5G). In such NOMA system, we deploy power domain to transfer multiple users' signals over same resource at the same time. As important result, two NOMA users communicate with each other as D2D pair and they exhibit different system performance due to different links and dissimilar allocated power levels. More specifically, expression of a closed-form is presented in term of the outage probability. In numerical result, exactness of the theoretical expressions can be confirmed by exploiting Monte Carlo simulations. Compared to many scenarios in such multiple access technique, the proposed NOMA scheme can offer improved spectral efficiency and user fairness by matching the obtained analytical and simulation results.

Online publication date: Fri, 24-Apr-2020

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