Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Modeling power angle spectrum and antenna pattern directions in
  multipath propagation environment   Most propagation models do not consider the influence of antenna patterns on
the parameters and characteristics of received signals. This assumption is
equivalent to the use of isotropic or omnidirectional antennas in these models.
Empirical measurement results indicate that the radiation pattern, gain and
direction of directional antennas significantly influence on properties of the
received signal. This fact shows that consideration the directional antennas in
propagation models is very important especially in the context of emerging
telecommunication technologies such as beamforming or massive MIMO. The purpose
of this paper is to present the modeling method of power angular spectrum and
direction of antenna patterns in a multipath propagation environment.

5
The categories of this paper are: gr-qc
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg