Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Facilitating Satellite-Airborne-Balloon-Terrestrial Integration for
  Dynamic and Infrastructure-less Networks   This magazine investigates the potential enhancement of the data throughput
of ground users by integrating ground base stations (GBS) with air stations,
such as balloon, airborne, and satellite. The objective is to establish dynamic
bi-directional wireless services (i.e., uplink and downlink) for ground users
in congested and remote areas. The proposed integration involves satellite,
high-altitude platforms (HAPs), and tethered balloons (TBs) in the exosphere,
stratosphere, and troposphere, respectively, for better altitude reuse coupled
with emerging optical or other high-frequency directional transceivers. This
will lead to a significant enhancement in scarce spectrum aggregate efficiency.
However, the air stations deployment and resource managements in this
integrated system faces difficulties. This article tackles resource management
challenges by (i) providing wireless services to ground users in remote areas
and connecting them with metropolitan and rural areas and (ii) employing HAPs
equipped with free-space-optical communication modules as back-hauling
backbones. Finally, we illustrate some numerical results to show the benefit of
our proposed integrated system.

35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
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The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
24
The categories of this paper are: dg-ga
2
The categories of this paper are: math
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat