Fluid-Based Modeling of Transport Protocol for Information-Centric Networking

In this paper, by utilizing fluid approximation, we develop a fluid model for an ICN (Information-Centric Networking) network comprised of multiple entities, multiple routers, and multiple repositories, at the transport level. Since ICN is a more complicated network architecture than IP and the complex interaction among content caching, request packet aggregation, and the behavior of a transport protocol must be considered, ICN requires more complicated modeling approach than IP. In the literature, several mathematical analyses of transport protocol for ICN have been performed. However, these mathematical analyses cannot be utilized to analyze the dynamics of transport protocols in ICN because these studies focus on steady state characteristics. In this paper, we develop a fluid model of a large-scale ICN network, by constructing network component models (i.e., entity, router, and repository) with uniform inputs and outputs (i.e., receiving and sending rate of request packets and content packets).