Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Modeling and Simulation of Practical Quantum Secure Communication
  Network   As the Quantum Key Distribution (QKD) technology supporting the pointto-point
application matures, the need to build the Quantum Secure Communication Network
(QSCN) to guarantee the security of a large scale of nodes becomes urgent.
Considering the project time and expense control, it is the first choice to
build the QSCN based on an existing classical network. Suitable modeling and
simulation are very important to construct a QSCN successfully and efficiently.
In this paper, a practical QSCN model, which can reflect the network state
well, is proposed. The model considers the volatile traffic demand of the
classical network and the real key generation capability of the QKD devices,
which can enhance the accuracy of simulation to a great extent. In addition,
two unique QSCN performance indicators, ITS (information-theoretic secure)
communication capability and ITS communication efficiency, are proposed in the
model, which are necessary supplements for the evaluation of a QSCN except for
those traditional performance indicators of classical networks. Finally, the
accuracy of the proposed QSCN model and the necessity of the proposed
performance indicators are verified by plentiful simulations results.

2
The categories of this paper are: math
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th
28
The categories of this paper are: alg-geom
4
The categories of this paper are: cond-mat
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
19
The categories of this paper are: eess
7
The categories of this paper are: hep-th
30
The categories of this paper are: q-alg