Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effect of Retransmissions on Optimal Caching in Cache-enabled Small Cell
  Networks   Caching popular content in the storage of small cells is being considered as
an efficient technique to complement limited backhaul of small cells in
ultra-dense heterogeneous cellular networks. Limited storage capacity of the
small cells renders it important to determine the optimal set of files (cache)
to be placed on each small cell. In contrast to prior works on optimal caching,
in this work we study the effect of retransmissions on the optimal cache
placement policy for both static and mobile user scenarios. With the popularity
of files modeled as a Zipf distribution and a maximum n transmissions, i.e.,
n-1 retransmissions, allowed to receive each file, we determine the optimal
caching probability of the files that maximizes the hit probability. Our
closed-form optimal solutions concretely demonstrate that the optimal caching
probabilities are very sensitive to the number of retransmissions.

36
The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
33
The categories of this paper are: plasm-ph
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph