Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optical wireless hybrid networks for 5G and beyond communications   The next 5 th generation (5G) and above ultra-high speed, ultra-low latency,
and extremely high reliable communication systems will consist of heterogeneous
networks. These heterogeneous networks will consist not only radio frequency
(RF) based systems but also optical wireless based systems. Hybrid
architectures among different networks is an excellent approach for achieving
the required level of service quality. In this paper, we provide the
opportunities bring by hybrid systems considering RF as well as optical
wireless based communication technologies. We also discuss about the key
research direction of hybrid network systems.

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The categories of this paper are: dg-ga
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The categories of this paper are: patt-sol
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The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: stat
5
The categories of this paper are: gr-qc
2
The categories of this paper are: math
35
The categories of this paper are: mtrl-th
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The categories of this paper are: astro-ph
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The categories of this paper are: q-bio
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The categories of this paper are: q-fin
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The categories of this paper are: supr-con
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The categories of this paper are: atom-ph
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The categories of this paper are: adap-org
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The categories of this paper are: ao-sci