In conventional cooperative non-orthogonal multiple access (NOMA) networks, spectral
efficiency loss occurs due to a half-duplex constraint. To address this issue, we propose an …

This paper proposes a new communication protocol for a cooperative non-orthogonal
multiple access (NOMA) system. In this system, based on users' channel conditions, each …

In this paper, a novel cooperative non-orthogonal multiple access (NOMA) system is
proposed, where one near user is employed as decode-and-forward relaying switching …

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) …

This paper proposes a novel hybrid downlinkuplink cooperative NOMA (HDU-CNOMA)
scheme to achieve a better tradeoff between spectral efficiency and signal reception …

In this paper, we study the performance improvement methods for a cell-edge user of two-
user non-orthogonal multiple access (NOMA) systems in downlink scenarios. To this end …

NOMA is a promising radio access technique for next-generation wireless networks. In this
article, we investigate the NOMA-based cooperative relay network. We begin with an …

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 …

We study a downlink non-orthogonal multiple access system with cooperative full-duplex
relaying, where the near user in terms of the base station (BS) is enabled to act as a full …

Non-orthogonal multiple access (NOMA) was recently regarded as a potential technique for
next generation wireless networks. Recent works on relay selection for cooperative NOMA …