In this paper, a downlink scenario of a non-orthogonal multiple access (NOMA) scheme with
power constraint via spectrum sensing is considered. Such network provides improved …

Non-orthogonal multiple access (NOMA) is a promising multiple access technique for future
wireless communications as it results in high spectral efficiency. NOMA differs from recently …

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 designs a novel non-orthogonal multiple access (NOMA) unicast-multicast
system, where a number of unicast users (those who require different messages) and a …

Non-orthogonal multiple access (NOMA) is considered to be one of the promising multiple
access (MA) techniques for 5G networks that can provide low latency, high system …

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, we present the optimal power allocation and relay precoder design for a
cognitive relay network employing non-orthogonal multiple access (NOMA) technique. The …

This paper investigates the opportunistic sharing of relay for the proposed Non-Orthogonal
Multiple Access (NOMA) assisted Cognitive Radio Networks (CRNs). The proposed scheme …

Cooperative non-orthogonal multiple access (NOMA) system employs user relaying to
enhance performance. Although full-duplex (FD) user relaying scheme does not incur …

Non‐orthogonal multiple access (NOMA), an emerging technology to improve system
capacity and spectrum efficiency, has attracted significant attention. In this study, the authors …