Dynamic Content Updates in Heterogeneous Wireless Networks

Content storage at the network edge is a promising solution to mitigate excessive content traffic. To this end, cache-enabled cellular architectures can be utilized to reduce the network cost. However, content storage strategies should be able to take into account user satisfaction, which depends on the age of a dynamic content. The ratio of satisfied users can be increased with more frequent cache refreshment, albeit at an increased network cost. In this paper, we introduce a cache refreshment strategy that strikes a balance between user satisfaction and the infrastructure cost.