Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Impact of Mobility on the Sum Rate of NB-OFDMA Based Mobile IoT Networks   In future Internet of Things (IoT) networks, the explosive growth of mobile
devices compel us to reconsider the effectiveness of the current
frequency-division multiple access (FDMA) schemes. Devices' differentiated
mobility features and diversified scattering environments make it more
complicated to characterize the multi-user interference. In this paper, we
thoroughly analyze the impacts of devices' mobility on the inter-sub-carrier
interference (ICI) in an IoT system based on the 3GPP narrow-band orthogonal
frequency-division multiple access (NB-OFDMA) protocol, and obtain the
relationship between the system sum-rate and devices' mobility. Our results may
shed some lights on the system design under the mobile scenarios.

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The categories of this paper are: astro-ph
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The categories of this paper are: stat
19
The categories of this paper are: eess
3
The categories of this paper are: physics
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga
5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
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The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg