Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Opportunistic Content Delivery in Fading Broadcast Channels   We consider content delivery over fading broadcast channels. A server wants
to transmit K files to K users, each equipped with a cache of finite size.
Using the coded caching scheme of Maddah-Ali and Niesen, we design an
opportunistic delivery scheme where the long-term sum content delivery rate
scales with K the number of users in the system. The proposed delivery scheme
combines superposition coding together with appropriate power allocation across
sub-files intended to different subsets of users. We analyze the long-term
average sum content delivery rate achieved by two special cases of our scheme:
a) a selection scheme that chooses the subset of users with the largest
weighted rate, and b) a baseline scheme that transmits to K users using the
scheme of Maddah-Ali and Niesen. We prove that coded caching with appropriate
user selection is scalable since it yields a linear increase of the average sum
content delivery rate.

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The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
30
The categories of this paper are: q-alg
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
13
The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat
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The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th