University of Ottawa
The authors consider the problem of caching in next generation mobile cellular networks where Small Base Stations (SBSs) are able to store their users' content and serve them accordingly. The SBSs are stochastically distributed over the plane and serve their users either from the local cache or internet via limited backhaul, depending on the availability of requested content. They model and characterize the outage probability and average content delivery rate as a function of the Signal-to-INterference-Ratio (SINR), base station intensity, and target file bitrate, storage size and file popularity. Their results provide key insights into the problem of cache-enabled small cell networks.