Freshness-Optimal Caching for Information Updating Systems with Limited Cache Storage Capacity
Haibin Xie,
Minquan Cheng,
Yongbing Zhang
Abstract:In this paper, we investigate a cache updating system with a server containing N files, K relays and M users. The server keeps the freshest versions of the files which are updated with fixed rates. Each relay can download the fresh files from the server in a certain period of time. Each user can get the fresh files from any relay as long as the relay has stored the fresh versions of the requested files. Due to the limited storage capacity and updating capacity of each relay, different cache designs will lead t… Show more
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