Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Power Allocation and User Assignment Scheme for Beyond 5G Heterogeneous
  Networks   The issue of spectrum scarcity in wireless networks is becoming prominent and
critical with each passing year. Although several promising solutions have been
proposed to provide a solution to spectrum scarcity, most of them have many
associated tradeoffs. In this context, one of the emerging ideas relates to the
utilization of cognitive radios (CR) for future heterogeneous networks
(HetNets). This paper provides a marriage of two promising candidates (i.e., CR
and HetNets) for beyond fifth generation (5G) wireless networks. More
specifically, a joint power allocation and user assignment solution for the
multi-user underlay CR-based HetNets has been proposed and evaluated. To
counter the limiting factors in these networks, the individual power of
transmitting nodes and interference temperature protection constraints of the
primary networks have been considered. An efficient solution is designed from
the dual decomposition approach, where the optimal user assignment is obtained
for the optimized power allocation at each node. The simulation results
validate the superiority of the proposed optimization scheme against
conventional baseline techniques.

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The categories of this paper are: q-bio
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The categories of this paper are: hep-lat
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The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: math-ph
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The categories of this paper are: solv-int
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-th
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The categories of this paper are: bayes-an
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The categories of this paper are: econ
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The categories of this paper are: chem-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: cmp-lg
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The categories of this paper are: supr-con
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The categories of this paper are: dg-ga