A computing device in a wireless communications network identifies content to be transmitted to a mobile device in the wireless communications network. The computing device also determines mobile edge nodes that serve radio coverage areas at different positions along a path that the mobile device is expected to take while receiving the content. Further, the computing device allocates, for storage in respective caches of the mobile edge nodes, different portions of the content that are expected to be served by different mobile edge nodes as the mobile device moves along the path.