… OMA schemes, ie, FDMA and TDMA, which serve two users … ; while the NOMA scheme
serves two users simultaneously … , for fair comparison with OMA. To characterize the optimal …

… CONCLUSION This paper compares NOMA and OMA for VLC systems with different user
pairing guidelines, and indicates that NOMA is not necessarily better than OMA in VLC …

… a NOMA system with 2 users; then analyze the user pairing problem in a simplified situation,
ie, a scenario with 4 users. … optimal user pairing, NOMA with random user pairing and OMA. …

… a NOMA pair and the trade-off with its OMA (orthogonal multiple access) counterparts. We
propose an adaptive user pairing (A-UP) algorithm for achieving better user … -art NOMA pairing …

… user pairing in the cooperative NOMA network, where the locations of the source and typical
user are fixed, and the candidate users for pairing … , FD NOMA, non-cooperative NOMA, OMA…

… supports both NOMA and orthogonal multiple access (OMA). … using either NOMA or OMA,
and to determine user pairing and … NOMA and OMA, respectively, and obtain the optimal user …

… capacity of uplink NOMA systems, and this paper investigates a user pairing strategy that …
We also compared our Adaptive user pairing strategy with conventional NOMA and OMA …

… , NOMA with the proposed user pairing strategy outperforms the conventional NOMA and
OMA … ∙ We investigate the ergodic sum-rate for NOMA systems with the proposed user pairing …

… 1, it implies that user pairing should be conducted such that the users’ channel gain should
be distinct. Moreover, it is worth mentioning that NOMA still outperforms OMA under high …

… 3, we compare the NOMA scheme with two OMA schemes based on TDMA which achieves
the same set of rates. M is set to 10. The required total power normalized by the total power …