Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Radar Aided Proactive Blockage Prediction in Real-World Millimeter Wave
  Systems   Millimeter wave (mmWave) and sub-terahertz communication systems rely mainly
on line-of-sight (LOS) links between the transmitters and receivers. The
sensitivity of these high-frequency LOS links to blockages, however, challenges
the reliability and latency requirements of these communication networks. In
this paper, we propose to utilize radar sensors to provide sensing information
about the surrounding environment and moving objects, and leverage this
information to proactively predict future link blockages before they happen.
This is motivated by the low cost of the radar sensors, their ability to
efficiently capture important features such as the range, angle, velocity of
the moving scatterers (candidate blockages), and their capability to capture
radar frames at relatively high speed. We formulate the radar-aided proactive
blockage prediction problem and develop two solutions for this problem based on
classical radar object tracking and deep neural networks. The two solutions are
designed to leverage domain knowledge and the understanding of the blockage
prediction problem. To accurately evaluate the proposed solutions, we build a
large-scale real-world dataset, based on the DeepSense framework, gathering
co-existing radar and mmWave communication measurements of more than $10$
thousand data points and various blockage objects (vehicles, bikes, humans,
etc.). The evaluation results, based on this dataset, show that the proposed
approaches can predict future blockages $1$ second before they happen with more
than $90\%$ $F_1$ score (and more than $90\%$ accuracy). These results, among
others, highlight a promising solution for blockage prediction and reliability
enhancement in future wireless mmWave and terahertz communication systems.

10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
17
The categories of this paper are: q-fin
3
The categories of this paper are: physics
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
5
The categories of this paper are: gr-qc
16
The categories of this paper are: stat
4
The categories of this paper are: cond-mat