Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A rigorous link performance and measurement uncertainty assessment for
  MIMO OTA characterisation   In this paper, a rigorous link performance test for MIMO OTA
(multiple-input-multiple-output over-the-air) characterisation with traceable
signal-to-interference-plus-noise ratio (SINR) is presented. Measurements were
made with three different testbeds which represent the 4G (fourth-generation)
LTE (long term evolution) SISO (single-input-single-output), 4G LTE MIMO and 5G
(fifth-generation) millimetre-wave (mm-wave) MIMO communication systems,
respectively, in the small antenna radiated test (SMART) screened fully
anechoic chamber, screened control room and reverberation chamber at the UK
National Physical Laboratory (NPL). The measurement campaign comprised of
automated data acquisition of channel power, downlink (DL) & uplink (UL) error
vector magnitude (EVM) and throughput. The measurement repeatability has been
assessed with standard deviation plotted as error bars and the uncertainty
sources in the OTA test are analysed.

21
The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio
5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
0
The categories of this paper are: hep-ph
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
25
The categories of this paper are: patt-sol
2
The categories of this paper are: math
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph