Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On Storage Allocation in Cache-Enabled Interference Channels with Mixed
  CSIT   Recently, it has been shown that in a cache-enabled interference channel, the
storage at the transmit and receive sides are of equal value in terms of
Degrees of Freedom (DoF). This is derived by assuming full Channel State
Information at the Transmitter (CSIT). In this paper, we consider a more
practical scenario, where a training/feedback phase should exist for obtaining
CSIT, during which instantaneous channel state is not known to the
transmitters. This results in a combination of delayed and current CSIT
availability, called mixed CSIT. In this setup, we derive DoF of a
cache-enabled interference channel with mixed CSIT, which depends on the memory
available at transmit and receive sides as well as the training/feedback phase
duration. In contrast to the case of having full CSIT, we prove that, in our
setup, the storage at the receive side is more valuable than the one at the
transmit side. This is due to the fact that cooperation opportunities granted
by transmitters' caches are strongly based on instantaneous CSIT availability.
However, multi-casting opportunities provided by receivers' caches are robust
to such imperfection.

13
The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
9
The categories of this paper are: nlin
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
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The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
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The categories of this paper are: cond-mat
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The categories of this paper are: hep-th
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The categories of this paper are: hep-lat
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The categories of this paper are: q-fin