Content retrieval method in cooperation with CDN and ICN-based in-network guidance over IP network

These days, in addition to host-to-host communication, Information-Centric Network (ICN) has emerged to reflect current content-centric network usage that many users are now interested not in where the content is but in acquired contents themselves. However, the authors believe that current IP network still remains, at least from deployment perspective, as one of near future network architectures. This is because ICN has various scalability and feasibility challenges, and host-to-host communication is also diffused like remote login, VoIP, and so on. Therefore, the authors´ research aims to establish the feature of information-centric network on conventional IP network to achieve feasible architecture. In this paper, we propose to operate Breadcrumbs (BC) and Content Delivery Network (CDN) frameworks coordinately on IP network to improve the performance on content retrieval and acquisition. Both BC and CDN are important as a content-centric technique. Finally, we compare the proposed method with CDN that we carefully modeled through simulation. Simulation results show that our approach can reduce server load.