On the Outage Performance of JT-CoMP-CNOMA Networks With SWIPT

In this letter, we investigate the outage performance of a joint transmission coordinated multipoint cooperative non-orthogonal multiple access (JT-CoMP-CNOMA) network. It is assumed that there is no direct links between the base stations and the cell-edge user, and thus the cell-centre users act as relays for the cell-edge user. The cell-centre users are assumed to be energy-constrained and adopt the simultaneous wireless information and power transfer (SWIPT) for decoding information and harvesting energy for forwarding. The closed-form approximate expressions for the outage probabilities of the users are derived. The theoretical results are verified by conducting Monte-Carlo simulations. It is shown that significant performance gain for the cell-edge user is achieved by JT-CoMP-CNOMA compared to the conventional CNOMA and the CoMP-CNOMA with opportunistic scheduling.