The design of cache size is one of the core issues in the research of caching strategies in Information-centric Networking

and the effective implementation of cache strategies is directly controlled by the pros and cons of the cache size allocation scheme. A novel cache size allocation scheme is proposed based on the node importance to community (NIC)

and compared  with the previous DC scheme that based on the node degree centrality. The simulation results show that NIC strategy can improve the utilization of network cache space and the network transmission performance.