docs: Extending list of research papers
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Research papers that use ndnSIM
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+- **M. Tortelli, L. A. Grieco, and G. Boggia, "Performance Assessment of Routing Strategies in Named Data Networking", in Proc. of GTTI 2013 Session on Telecommunication Networks, 2013** (`PDF <http://www.gtti.it/GTTI13/papers/Tortelli_et_al_GTTI2013.pdf>`_)
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+Information Centric Networking (ICN) architectures are currently being investigated to orient the Future Internet towards a content centric paradigm, thus allowing the provisioning of more secure, efficient, and scalable services. In this work, we focus on the Named Data Networking (NDN) proposal to analyze the impact of several routing and forwarding strategies, which play a fundamental role in ICN. In particular, thanks to the recently devised ns-3 based NDN simulator, namely ndnSIM, we conduce an extensive simulation campaign using the GEANT topology as a core network. We monitor different distinctive metrics, such as file download time, server load reduction, hit ratio, hit distance, and communication overhead, in different topologies and traffic conditions. Simulation results show that the election of a single best forwarding strategy is a difficult task. Indeed, the pros and cons of each strategy are heavily influenced by the popularity distribution of contents, which, in turn, affects the effectiveness of the distributed caching mechanisms typically used in the NDN architecture.
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- **B. Zhou, C. Wu, X. Hong, and M. Jiang, "Algorithms for Distributed Programmable Controllers", Technical Report, March 2013.** (`PDF <http://hong.cs.ua.edu/DCP-techReport-March2013.pdf>`_)
A few works on SDN (Software-Defined Networking) like those in Onix improve programmability of the distributed network control. The asynchronism and Byzantine issues of the control challenge the re-configurability of the service that is to safely program the control in atomic so as to avoid the transient control issues like the routing loops and black holes. We propose two important algorithms of the distributed control to enable the programmability: (1) the reconfiguration primitive allows the network control of the services being able to safely react to an external event; and (2) the reuse primitive allows the control states of a service being accessible for all services. We give concepts and algorithms of two primitives. In addition, we provide the concrete cases of the current approaches for ICN (Information-Centric Networking) and CDN (Content Distribution Networks) for quests of the reconfigurability and programmability. Then, we evaluate the performance of ICN in both simulation and the PlanetLab testbed. The evaluation results show that the layer improves the lowers 19.6% of the Interest delays in the ICN that is heavily congested and lowers 97% delays in the PlanetLab with 9 nodes on usual case. In addition, the evaluation of CDN on the PlanetLab shows that it reduces 81% request delay on usual case.