On the outage performance of SWIPT-NOMA-CRS with imperfect SIC and CSI

In this paper, a nonorthogonal multiple access based cooperative relaying system (NOMA-CRS) is consideredto increase spectral efficiency. Besides, the simultaneous wireless information and power transfer (SWIPT) proposedfor relay in NOMA-CRS. SWIPT-NOMA-CRS, three different energy harvesting (EH) protocols, sharing(PS), time sharing (TS) ideal protocols are implemented. The outage performances of SWIPT-NOMA-CRSare studied for all EH protocols. analysis, to represent practical/reasonable scenarios, imperfect successiveinterference canceler (SIC) channel state (CSI) taken into consideration. derivedoutage probability (OP) expressions validated via computer simulations. OP benchmark scheme,NOMA-CRS without EH, also derived under SIC CSI. Based on extensive simulations, it revealedthat SWIPT-NOMA-CRS outperforms NOMA-CRS EH. Finally, effects parameters outageperformance discussed given optimum PS factor, TS factorand allocation coe?icients demonstrated.