Abstract
Content-Centric Networking (CCN) has emerged as a future Internet communication model by replacing host addresses with named contents. Over the last years, caching at routers in CCN is attracting a lot of interest. Specially, caching of video traffic is emerging as a serious concern for CCN deployment due to the special characteristics of video streaming such as large content size and low latency requirements. In this paper, we propose a hierarchical parent-child caching strategy called H-CS in order to ensure low access latency and to reduce load on the network. Basically, each router is assigned a level-based caching indicator to guarantee higher probability content storage as closer as possible to the requesters. Performance evaluation demonstrates the effectiveness of the proposed H-CS scheme using ns-3 based NDN (named data netwok) simulator (ndnSIM). In fact, simulations show how H-CS functionality can be used to achieve efficient and reliable video dissemination including the support of delay tolerant delivery.