Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Integrated Millimeter Wave and Sub-6 GHz Wireless Networks: A Roadmap
  for Joint Mobile Broadband and Ultra-Reliable Low-Latency Communications   Next-generation wireless networks must enable emerging technologies such as
augmented reality and connected autonomous vehicles via wide range of wireless
services that span enhanced mobile broadband (eMBB), as well as ultra-reliable
low-latency communication (URLLC). Existing wireless systems that solely rely
on the scarce sub-6 GHz, microwave ($\mu$W) frequency bands will be unable to
meet such stringent and mixed service requirements for future wireless services
due to spectrum scarcity. Meanwhile, operating at high-frequency millimeter
wave (mmWave) bands is seen as an attractive solution, primarily due to the
bandwidth availability and possibility of large-scale multi-antenna
communication. However, mmWave communication is inherently unreliable due to
its susceptibility to blockage, high path loss, and channel uncertainty. Hence,
to provide URLLC and high-speed wireless access, it is desirable to seamlessly
integrate the reliability of $\mu$W networks with the high capacity of mmWave
networks. To this end, in this paper, the first comprehensive tutorial for
\emph{integrated mmWave-$\mu$W} communications is introduced. This envisioned
integrated design will enable wireless networks to achieve URLLC along with
eMBB by leveraging the best of two worlds: reliable, long-range communications
at the $\mu$W bands and directional high-speed communications at the mmWave
frequencies. To achieve this goal, key solution concepts are discussed that
include new architectures for the radio interface, URLLC-aware frame structure
and resource allocation methods along with mobility management, to realize the
potential of integrated mmWave-$\mu$W communications. The opportunities and
challenges of each proposed scheme are discussed and key results are presented
to show the merits of the developed integrated mmWave-$\mu$W framework.

10
The categories of this paper are: q-bio
5
The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
8
The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys