Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: TLFW: A Three-layer Framework in Wireless Rechargeable Sensor Network
  with a Mobile Base Station   Wireless sensor networks as the base support for the Internet of things has
been a large number of popularity and application. Such as intelligent
agriculture, we have to use the sensor network to obtain the growth
environmental data of crops, etc.. However, the difficulty of power supply of
wireless nodes has seriously hindered the application and development of
Internet of things. In order to solve this problem, people use low-power, sleep
scheduling and other energy-saving methods on the nodes. Although these methods
can prolong the working time of nodes, they will eventually become invalid
because of the exhaustion of energy. The use of solar energy, wind energy, and
wireless signals in the environment to obtain energy is another way to solve
the energy problem of nodes. However, these methods are affected by weather,
environment and other factors, and are unstable. Thus, the discontinuity work
of the node is caused. In recent years, the development of wireless power
transfer (WPT) has brought another solution to this problem. In this paper, a
three-layer framework is proposed for mobile station data collection in
rechargeable wireless sensor networks to keep the node running forever, named
TLFW which includes the sensor layer, cluster head layer, and mobile station
layer. And the framework can minimize the total energy consumption of the
system. The simulation results show that the scheme can reduce the energy
consumption of the entire system, compared with a Mobile Station in a
Rechargeable Sensor Network(MSiRSN).

5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
14
The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
18
The categories of this paper are: econ
2
The categories of this paper are: math
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol