Abstract
The inter-cell interference (ICI) and the intra-user interference in non-orthogonal multiple access (NOMA) cellular networks have serious impacts on the performance of cell edge users. In this letter, we investigate the integration of coordinated multipoint (CoMP) transmission and cooperative NOMA (C-NOMA) aiming to improve the performance of cell edge users. Using this framework, we exploit the cooperation between base stations (BSs) to mitigate the ICI and the successive decoding of users that are near the BSs to further enhance the performance of cell edge users. In this setting, we derive a closed form expression for the outage probability of a cell edge user along with an analytical expression for its ergodic rate. We validate the derived expressions through various Monte-Carlo simulations, where we show the superiority of the proposed framework compared with other multiple access schemes proposed in the literature.
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