Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: IEEE 802.11ax: High-Efficiency WLANs   IEEE 802.11ax-2019 will replace both IEEE 802.11n-2009 and IEEE 802.11ac-2013
as the next high-throughput Wireless Local Area Network (WLAN) amendment. In
this paper, we review the expected future WLAN scenarios and use-cases that
justify the push for a new PHY/MAC IEEE 802.11 amendment. After that, we
overview a set of new technical features that may be included in the IEEE
802.11ax-2019 amendment and describe both their advantages and drawbacks.
Finally, we discuss some of the network-level functionalities that are required
to fully improve the user experience in next-generation WLANs and note their
relation with other on-going IEEE 802.11 amendments.

14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an
2
The categories of this paper are: math
17
The categories of this paper are: q-fin
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
23
The categories of this paper are: solv-int
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
0
The categories of this paper are: hep-ph
24
The categories of this paper are: dg-ga
27
The categories of this paper are: comp-gas