Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Cross-Technology Communication for the Internet of Things: A Survey   The ever-developing Internet of Things (IoT) brings the prosperity of
wireless sensing and control applications. In many scenarios, different
wireless technologies coexist in the shared frequency medium as well as the
physical space. Such wireless coexistence may lead to serious cross-technology
interference (CTI) problems, e.g. channel competition, signal collision,
throughput degradation. Compared with traditional methods like interference
avoidance, tolerance, and concurrency mechanism, direct and timely information
exchange among heterogeneous devices is therefore a fundamental requirement to
ensure the usability, inter-operability, and reliability of the IoT. Under this
circumstance, Cross-Technology Communication (CTC) technique thus becomes a hot
topic in both academic and industrial fields, which aims at directly exchanging
data among heterogeneous devices that follow different standards. This paper
comprehensively summarizes the CTC techniques and reveals that the key
challenge for CTC lies in the heterogeneity of IoT devices, including the
incompatibility of technical standards and the asymmetry of connection
capability. Based on the above finding, we present a taxonomy of the existing
CTC works (packet-level CTCs and physical-level CTCs) and compare the existing
CTC techniques in terms of throughput, reliability, hardware modification, and
concurrency.

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The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
9
The categories of this paper are: nlin
8
The categories of this paper are: hep-ex
3
The categories of this paper are: physics
4
The categories of this paper are: cond-mat
15
The categories of this paper are: nucl-ex
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The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
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The categories of this paper are: chem-ph
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The categories of this paper are: supr-con
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The categories of this paper are: cmp-lg
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The categories of this paper are: eess