Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On Secrecy Performance of Antenna Selection Aided MIMO Systems Against
  Eavesdropping   In this paper, we consider a multiple-input multiple-output (MIMO) system
consisting of one source, one destination and one eavesdropper, where each node
is equipped with an arbitrary number of antennas. To improve the security of
source-destination transmissions, we investigate the antenna selection at the
source and propose the optimal antenna selection (OAS) and suboptimal antenna
selection (SAS) schemes, depending on whether the source node has the global
channel state information (CSI) of both the main link (from source to
destination) and wiretap link (from source to eavesdropper). Also, the
traditional space-time transmission (STT) is studied as a benchmark. We
evaluate the secrecy performance of STT, SAS, and OAS schemes in terms of the
probability of zero secrecy capacity. Furthermore, we examine the generalized
secrecy diversity of STT, SAS, and OAS schemes through an asymptotic analysis
of the probability of zero secrecy capacity, as the ratio between the average
gains of the main and wiretap channels tends to infinity. This is different
from the conventional secrecy diversity which assumes an infinite
signal-to-noise ratio (SNR) received at the destination under the condition
that the eavesdropper has a finite received SNR. It is shown that the
generalized secrecy diversity orders of STT, SAS, and OAS schemes are the
product of the number of antennas at source and destination. Additionally,
numerical results show that the proposed OAS scheme strictly outperforms both
the STT and SAS schemes in terms of the probability of zero secrecy capacity.

14
The categories of this paper are: math-ph
15
The categories of this paper are: nucl-ex
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess