An adaptive TTL allocation scheme for real-time live and on-demand personal broadcasting service

This paper describes an adaptive time-to-live (TTL) allocation scheme based on dynamic caching of content delivery network (CDN). This is advantageous in that when a client watches a real-time private broadcast, the load of the origin server can be efficiently reduced when a certain scene from the past is viewed again, and a storage space of a cache server can be efficiently used. Therefore, the adaptive TTL allocation scheme proposed in this paper is expected to provide a better service when personal broadcasting viewers selectively view past videos.