  Caching popular contents at the edge of the network can positively impact the
performance and future sustainability of wireless networks in several ways,
e.g., end-to-end access delay reduction and peak rate increase. In this paper,
we aim at showing that non-negligible performance enhancements can be observed
in terms of network interference footprint as well. To this end, we consider a
full-duplex small-cell network consisting of non-cooperative cache-aided base
stations, which communicate simultaneously with both downlink users and
wireless backhaul nodes. We propose a novel caching model seeking to mimic a
geographical policy based on local files popularity and calculate the
corresponding cache hit probability. Subsequently we study the performance of
the considered network in terms of throughput gain with respect to its
cache-free half-duplex counterpart. Numerical results corroborate our
theoretical findings and highlight remarkable performance gains when moving
from cache-free to cache-aided full-duplex small-cell networks.
