Lf: A caching strategy for named data mobile ad hoc networks

Abstract

Named data networking (NDN) mode has natural advantages in wireless networks but introduces new problems as well. The storage space of nodes in a MANET (mobile ad hoc network) is limited; therefore, the on-path caching strategy of NDN must be modified. A caching strategy, called less space still faster (LF), is proposed that chooses nodes to cache data on a packet forwarding path and selects the cached contents based on their popularity. At the same time, the cache distribution of the data and the storage capacity of the nodes are also considered. Simulation results show LF has good performance in terms of response time, network traffic, and cache hit ratio. The design goal of reducing cache redundancy while maintaining a rapid response time is thus realized.