Proposal and Evaluation of SDN-Based Mobile Packet Core Networks

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Provided by: Springer Science+Business Media
Topic: Networking
Format: PDF
Recently, several researchers have proposed adopting Software-Defined Networking (SDN) concepts for mobile network architectures, particularly for LTE-evolved packet core (LTE/EPC). Although several new designs have been introduced for architectures based on SDN or its concrete realization, Open flow, few studies have presented in-depth discussions of real procedures that are relevant to such architectures. To this end, this paper first surveys the current approaches and solutions for adopting SDN/Open flow in LTE/EPC architectures and then introduces a new Open flow-enabled EPC (OEPC) architecture. This paper provides detailed analyses of five procedures that commonly occur in LTE/EPC architectures and the analyses are further elaborated with the separation of the control and data planes and the support of extended Open flow protocol.
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