LICA: A segment-popularity based caching scheme in ICN

In-network caching schemes in information-centric networking (ICN) often consider the popularity granularity in the content level, which ignores the character that different parts of a content may have different popularity. This paper proposes a segment Level-based Implicit Cooperation cAche (LICA) scheme. LICA assigns a cache router a level based on its location and archives implicit cooperation with tags in interest and data packets. We compare LICA with other caching schemes and the simulation results show that LICA has higher average hit ratio, lower average hop count of content retrieval, and reduces the network traffic than other schemes, which will improve the experience of users in real-time streaming media service.