Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Joint Blind Identification of the Number of Transmit Antennas and MIMO
  Schemes Using Gerschgorin Radii and FNN   Blind enumeration of the number of transmit antennas and blind identification
of multiple-input multiple-output (MIMO) schemes are two pivotal steps in MIMO
signal identification for both military and commercial applications.
Conventional approaches treat them as two independent problems, namely the
source number enumeration and the presence detection of space-time redundancy,
respectively. In this paper, we develop a joint blind identification algorithm
to determine the number of transmit antennas and MIMO scheme simultaneously. By
restructuring the received signals, we derive three subspace-rank features
based on the signal subspace-rank to determine the number of transmit antennas
and identify space-time redundancy. Then, a Gerschgorin radii-based method and
a feed-forward neural network are employed to calculate these three features,
and a minimal weighted norm-1 distance metric is utilized for decision making.
In particular, our approach can identify additional MIMO schemes, which most
previous works have not considered, and is compatible with both single-carrier
and orthogonal frequency division multiplexing (OFDM) systems. Simulation
results verify the viability of our proposed approach for single-carrier and
OFDM systems and demonstrate its favorable identification performance for a
short observation period with acceptable complexity.

3
The categories of this paper are: physics
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph
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The categories of this paper are: astro-ph
21
The categories of this paper are: adap-org
35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
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The categories of this paper are: math
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The categories of this paper are: cmp-lg
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The categories of this paper are: solv-int
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The categories of this paper are: nucl-ex