Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Transportation dynamics on coupled networks with limited bandwidth   The communication networks in real world often couple with each other to save
costs, which results in any network does not have a stand-alone function and
efficiency. To investigate this, in this paper we propose a transportation
model on two coupled networks with bandwidth sharing. We find that the
free-flow state and the congestion state can coexist in the two coupled
networks, and the free-flow path and congestion path can coexist in each
network. Considering three bandwidth-sharing mechanisms, random, assortative
and disassortative couplings, we also find that the transportation capacity of
the network only depends on the coupling mechanism, and the fraction of coupled
links only affects the performance of the system in the congestion state, such
as the traveling time. In addition, with assortative coupling, the
transportation capacity of the system will decrease significantly. However, the
disassortative coupling has little influence on the transportation capacity of
the system, which provides a good strategy to save bandwidth. Furthermore, a
theoretical method is developed to obtain the bandwidth usage of each link,
based on which we can obtain the congestion transition point exactly.

12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
13
The categories of this paper are: quant-ph
4
The categories of this paper are: cond-mat
36
The categories of this paper are: cmp-lg
25
The categories of this paper are: patt-sol