Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Resource Allocation for Secure MISO-NOMA Cognitive Radios Relying on
  SWIPT   Cognitive radio (CR) and non-orthogonal multiple access (NOMA) are two
promising technologies in the next generation wireless communication systems.
The security of a NOMA CR network (CRN) is important but lacks of study. In
this paper, a multiple-input single-output NOMA CRN relying on simultaneous
wireless information and power transfer is studied. In order to improve the
security of both the primary and secondary network, an artificial noise-aided
cooperative jamming scheme is proposed. Different from the most existing works,
a power minimization problem is formulated under a practical non-linear energy
harvesting model. A suboptimal scheme is proposed to solve this problem based
on semidefinite relaxation and successive convex approximation. Simulation
results show that the proposed cooperative jamming scheme is efficient to
achieve secure communication and NOMA outperforms the conventional orthogonal
multiple access in terms of the power consumption.

37
The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
15
The categories of this paper are: nucl-ex
17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga