Cooperative non-orthogonal multiple access (NOMA) systems inherit advantages of the
NOMA protocol and the cooperative relay. In this paper, we propose cooperative NOMA …

In this paper, we propose bi-directional cooperative non-orthogonal multiple access
(NOMA). Compared to conventional NOMA, the main contributions of bi-directional …

Non-orthogonal multiple access (NOMA) is a promising multiple access technique for the
fifth generation (5G) wireless communications. In order to enhance the performance gains of …

Non-orthogonal multiple access (NOMA) has received considerable recent attention as a
promising candidate for 5G systems. A key feature of NOMA is that users with better channel …

This letter presents a new downlink cooperative non-orthogonal multiple access (NOMA)
transmission scheme to serve three users within only two time slots. The scheme involves a …

Non-orthogonal multiple access (NOMA) is a promising spectrally-efficient multiple access
technique for the fifth generation (5G) wireless networks. In this paper, we propose a …

Recent studies have demonstrated the superiority of non-orthogonal multiple access
(NOMA) over orthogonal multiple access (OMA) in cooperative communication networks. In …

This letter studies the impact of relay selection (RS) on the performance of cooperative non-
orthogonal multiple access (NOMA). In particular, a two-stage RS strategy is proposed, and …

This paper studies a two-user cooperative non-orthogonal multiple access network with a
novel cooperation scheme, where the source communicates with the near user directly or …

Non-orthogonal multiple access (NOMA) is a promising multiple access technique, which
exploits the power domain to enhance the spectral efficiency of the fifth generation (5G) …