… Non-orthogonal multiple access (NOMA) technique is a promising alternative for enhancing
network sum-rate while increasing the interference … Non-orthogonal multiple access (NOMA) …

… 5G technology not only needs to significantly improve spectrum efficiency, but it also …
large-scale device connections. User detection technology separates users and solves network …

… To this end, the non-orthogonal multiple access (NOMA) technique has been proposed as a
… 2Note that the subspace is determined by the angular resolution of the largescale antenna …

… A generalization of these solutions to large-scale networks with multiple users will be of
great importance. Moreover, all these works focus on grantbased schemes, which may not be …

… The program resulted in large delays and high signaling costs made worse and even harder
to accept in the scenario of 5G's expected large-scale connectivity. In contrast, this dynamic …

… To provide feasible services for these large-scale devices and improve the spectrum
efficiency (SE), both non-orthogonal multiple access (NOMA) and ultra-dense network (UDN) are …

… allocation of Nonorthogonal multiple access (NOMA) for secondary users (SU) in a Cognitive
Mobile Radio Network (… is large-scale path loss, represented by the following expression …

… made the non-orthogonal multiple access–enabled heterogeneous networks a new research
topic in the modern era. In this survey, the concept of non-orthogonal multiple access and …

… into orthogonal multiple access (OMA) and nonorthogonal multiple access (NOMA… Non-orthogonal
multiple access for large-scale 5G networks: Interference aware design,” IEEE Access…

… [27] investigated the secrecy performance of NOMA communication in largescale networks,
where artificial noise was invoked to enhance physical layer security. Zhang et al. [28] …