Age of Information Analysis for Cache-enabled UAV Networks

In this paper, we consider a freshness-aware cache-enabled unmanned aerial vehicle (UAV) network, where both UAV and base station (BS) can provide fresh contents to user equipment (UE). Specifically, we consider the content-centric association scheme. To analyze the data freshness, we derive the Age of Information (AoI) violation probability using stochastic geometry. Finally, we show the impact of UAVs altitude and cache size on the AoI violation probability.