Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multihop Caching-Aided Coded Multicasting for the Next Generation of
  Cellular Networks   Next generation of cellular networks deploying wireless distributed
femtocaching infrastructure proposed by Golrezaei et. al. are studied. By
taking advantage of multihop communications in each cell, the number of
required femtocaching helpers is significantly reduced. This reduction of
femtocaches is achieved by using the underutilized storage and communication
capabilities in the User Terminals (UTs), which results in reducing the
deployment costs of distributed femtocaches. A multihop index coding technique
is proposed to code the cached contents in helpers to achieve order optimal
capacity gains. This can serve as an efficient content delivery algorithm for
the solution provided by Golrezaei et. al. As an example, we consider a
wireless cellular system in which contents have a popularity distribution. It
has been shown that if the contents follow a high content reuse popularity
distribution, our approach can replace many unicast communication with
multicast communication. We will prove that simple linear index codes found by
heuristics based on graph coloring algorithms can achieve order optimal
capacity under Zipfian content popularity distribution.

10
The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
9
The categories of this paper are: nlin
36
The categories of this paper are: cmp-lg
23
The categories of this paper are: solv-int
4
The categories of this paper are: cond-mat
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph