| Abstrakt: |
This paper proposes an optimal energy harvesting time, users pairing and resource allocation (OHUPRA) for non-orthogonal multiple access (NOMA). The base station (BS) harvests power from the radio frequency (RF) signal of node Aover αFseconds where 0 < α< 1 is the harvesting time and Fis frame duration. Then, it transmits data to KLusers over Lbands during (1 α)Fseconds where transmission to the ithset of Kusers is performed using NOMA on the ithband. We optimise α, the set of NOMA users (users' pairing) and the allocated NOMA powers. The performance of OHUPRA is compared to NOMA, NOMA with optimal harvesting time (NOMA OH), NOMA with optimal user pairing and resource allocation (OUPRA). OHUPRA offers up to 12 dB, 16 dB and 20 dB versus OUPRA, NOMA OH and NOMA. The main contribution and innovation of this paper are to optimise harvesting time, users' pairing and resource allocation to maximise the throughput. |
