… , they exploited the principle of underlay cognitive radio to … , which can effectively utilize
multi-user diversity. • For both BU-… , where the GF user is randomly selected from all the GF users. …

… the integration of PD-NOMA with antenna selection schemes, MIMO … in a downlink scenario
for a multi-user MIMO-NOMA system. … The performance of NOMA and OMA for transmit power …

… We study the effectiveness of our proposed design and investigate the potential benefits of
… relies more on transmit beamforming instead of NOMA for multi-user transmission. From a …

… and relay transmission (CDRT) protocol in a downlink NOMA-… user selection and switching
between cooperative NOMA, non-cooperative NOMA, and OMA techniques for the underlay …

… ) is one of the promising techniques for spectrum efficiency in … users and transmit data to
secondary users in the underlay … in which the secondary users can select an action, such as …

… connections: (1) Direct transmission phase; (2) Cooperation … the secure performance of
multi-user NOMA networks. To … Based on the proposed selection scheme, we derive the exact …

… from the signals transmitted by the j th BS to other users, and … for any choice of base stations
then then that user can not be … of multi-user diversity because when the number of users in …

… shown that the use of non-orthogonal multiple access (NOMA) … scheme for a 2-user underlay
CR with FD to improve the … unit of transmitted information will improve the efficiency. Thus, …

… (OMA), with the choice to select either depending upon the … complex technique known as
multi-user detection (MUD) has … To perform NOMA transmission, all users in the same group …

… performance of CR-NOMA under the partial relay selection … ) on the performance of underlay
CRNOMA DF relaying networks … 6, we show the OP of users versus the transmit power of B …