Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Statistical Modeling of Propagation Channels for Terahertz Band   Digital revolution and recent advances in telecommunications technology
enable to design communication systems which operate within the regions close
to the theoretical capacity limits. Ever-increasing demand for wireless
communications and emerging numerous high-capacity services, data rates and
applications mandate providers to employ more bandwidth-oriented solutions to
meet the requirements. It is clear that such rates could only be achieved by
employing more bandwidth with the state-of-the- art technology. Considering the
fact that bands in the range of 275GHz-3000GHz, which are known as Terahertz
(THz) bands, are not allocated yet for specific active services around the
globe, there is an enormous potential to achieve the desired data rates.
Although THz bands look promising to achieve data rates on the order of several
tens of Gbps, realization of fully operational THz communications systems
obliges to carry out a multi- disciplinary effort including statistical
propagation and channel characterizations, adaptive transceiver designs,
reconfigurable platforms, advanced signal processing algorithms and techniques
along with upper layer protocols equipped with various security and privacy
levels. Therefore, in this study, several important statistical parameters for
line-of-sight (LOS) channels are measured. High resolution frequency domain
measurements are carried out at single-sweep within a span of 60GHz. Impact of
antenna misalignment under LOS conditions is also investigated. By validating
exponential decay of the received power in both time and frequency domain, path
loss exponent is examined for different frequencies along with the
frequency-dependent path loss phenomenon. Furthermore, impact of humidity is
also tested under LOS scenario. Measurement results are presented along with
relevant discussions and future directions are provided as well.

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The categories of this paper are: hep-ph
18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
7
The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org
4
The categories of this paper are: cond-mat
16
The categories of this paper are: stat
3
The categories of this paper are: physics
19
The categories of this paper are: eess