Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: E-HORM: An Energy-efficient Hole Removing Mechanism in Wireless Senor
  Networks   Cluster based routing protocols forWireless Sensor Networks (WSNs) have been
widely used for better performance in terms of energy efficiency. Efficient use
of energy is challenging task of designing these protocols. Energy holes are
created due to quickly drain the energy of a few nodes due to nonuniform node
distribution in the network. Normally, energy holes make the data routing
failure when nodes transmit data back to the sink. We propose
Energy-efficientHOle Removing Mechanism (E-HORM) technique to remove energy
holes. In this technique, we use sleep and awake mechanism for sensor nodes to
save energy. This approach finds the maximum distance nodes to calculate the
maximum energy for data transmission. We consider it as a threshold energy Eth.
Every node first checks its energy level for data transmission. If the energy
level of node is less than Eth, it cannot transmit data.

37
The categories of this paper are: supr-con
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
23
The categories of this paper are: solv-int
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
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
3
The categories of this paper are: physics