We present a new architecture to handle the ongoing explosive increase in the
demand for video content in wireless networks. It is based on distributed
caching of the content in femto-basestations with small or non-existing
backhaul capacity but with considerable storage space, called helper nodes. We
also consider using the mobile terminals themselves as caching helpers, which
can distribute video through device-to-device communications. This approach
allows an improvement in the video throughput without deployment of any
additional infrastructure.
We suggest a novel approach to handle the ongoing explosive increase in the
demand for video content in wireless/mobile devices. We envision femtocell-like
base stations, which we call helpers, with weak backhaul links but large
storage capacity. These helpers form a wireless distributed caching network
that assists the macro base station by handling requests of popular files that
have been cached. Due to the short distances between helpers and requesting
devices, the transmission of cached files can be done very efficiently.
Cooperation between the nodes of wireless multihop networks can increase
communication reliability, reduce energy consumption, and decrease latency. The
possible improvements are even greater when nodes perform mutual information
accumulation using rateless codes. In this paper, we investigate routing
problems in such networks. Given a network, a source, and a destination, our
objective is to minimize end-to-end transmission delay under energy and
bandwidth constraints.
Cooperation between the nodes of wireless multihop networks can increase
communication reliability, reduce energy consumption, and decrease latency. The
possible improvements are even greater when nodes perform mutual information
accumulation using rateless codes. In this paper, we investigate routing
problems in such networks. Given a network, a source, and a destination, our
objective is to minimize end-to-end transmission delay under energy and
bandwidth constraints.