Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Information-Theoretic Analysis of D2D-Aided Pipelined Content Delivery
  in Fog-RAN   In a Fog-Radio Access Network (F-RAN), edge caching and fronthaul
connectivity to a cloud processor are utilized for the purpose of content
delivery. Additional Device-to-Device (D2D) communication capabilities can
support the operation of an F-RAN by alleviating fronthaul and cloud processing
load, and reducing the delivery time. In this work, basic limits on the
normalized delivery time (NDT) metric, which captures the high signal-to-noise
ratio worst-case latency for delivering any requested content to the users, are
derived. Assuming proactive offline caching, out-of-band D2D communication, and
an F-RAN with two edge nodes and two users, an information-theoretically
optimal caching and delivery strategy is presented. Unlike prior work, the NDT
performance is studied under pipelined transmission, whereby the edge nodes
transmit on the wireless channel while simultaneously receiving messages over
the fronthaul links, and the users transmit messages over the D2D links while
at the same time receiving on the wireless channel. Insights are provided on
the regimes in which D2D communication is beneficial, and the maximum
improvement to the latency is characterized.

17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn