Caching Using Software-Defined Networking in LTE Networks

Abstract : The data consumption is increasing rapidly in mobile net- works. The cost of network infrastructure is increasing, which will lead to an ”end of profit” within next few years. Thus, mobile operators require technology that allows in- creasing the network capacity within low network costs. There- fore, using caching is the most evident solution to be used in their backhaul networks. However, the current architec- ture of LTE network does not provide sucient flexibility to place the caches in the most optimal locations. The current work on Software-Defined Networking in Evolved Packet Core virtualization has enabled us to integrate dy- namically the caching functionality in a LTE network and improve the caching system performance. In this paper, we present the solution we designed for this aim based on Soft- ware Defined Networking technology. Moreover, we develop a testbed for the proof-of-concept and we present perfor- mance analysis of this solution.
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Mael Kimmerlin, Jose Costa-Requena, Jukka Manner, Damien Saucez, Yago Sanchez. Caching Using Software-Defined Networking in LTE Networks. 2015. ⟨hal-01117447v2⟩

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