… In addition, by comparing benchmark 2 with benchmark 4, and comparing benchmark 3
with benchmark 5, we can find that transmission protocols with adaptive relay selection …

… The key idea of NOMA is to serve multiple users in the same frequency band, but with
different power levels. The application of cooperative transmission to NOMA is important since …

… for relay selection assisted D2DNOMA systems by relying on transmit antenna selection and
FD transmission. … 1) Different from [23], we propose three new D2DNOMA communication …

… Based on the above observations, in this paper, a new cooperative transmission NOMA
system model with opportunistic suboptimal RS stategy focusing on time-domain is studied. …

… of multiple relays. We propose a two-stage relay selection strategy for NOMA networks with
… A natural idea is that combining relay transmission with NOMA can enhance the weak user’…

… relay selection schemes, respectively. In this paper, a downlink cooperative NOMA network
with two users and K relays … relay k is selected for message transmission using powerdomain …

… a NOMA system with different transmit antenna selection schemes was studied in [18]. In this
paper, different relay selection schemes … of cooperative SWIPT-NOMA against any passive …

… NOMA-based transmission policies have been extensively studied for various wireless
systems. Chen et al. studied the non-orthogonal channel estimation to acquire the channel state …

… circuit of relay and transmission of signal towards end users. (9) P h n = P r n + P c P c is
fixed power required to maintain circuit of relay and P r n is transmission power at relay n. We …

… The concept of cooperative NOMA was initially proposed for downlink transmission in [18],
where the nearby user with better channel conditions was viewed as decode-andforward (DF) …