Programmable Mobile Core Network

Shanmugalingam, Sivasothy; Bertin, Philippe

doi:10.1109/iscc.2014.6912629

Cited by 11 publications

(11 citation statements)

References 3 publications

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“…The authors in [74] also proposed an approach for LTE mobile core network relying on the concept of SDN. In this architecture, the MME entity still exists and is responsible for mobility management.…”

Section: Flow-based Routingmentioning

confidence: 99%

SDN and Virtualization-Based LTE Mobile Network Architectures: A Comprehensive Survey

Nguyen

Kim

2015

Wireless Pers Commun

104

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Software-defined networking (SDN) features the decoupling of the control plane and data plane, a programmable network and virtualization, which enables network infrastructure sharing and the ''softwarization'' of the network functions. Recently, many research works have tried to redesign the traditional mobile network using two of these concepts in order to deal with the challenges faced by mobile operators, such as the rapid growth of mobile traffic and new services. In this paper, we first provide an overview of SDN, network virtualization, and network function virtualization, and then describe the current LTE mobile network architecture as well as its challenges and issues. By analyzing and categorizing a wide range of the latest research works on SDN and virtualization in LTE mobile networks, we present a general architecture for SDN and virtualization in mobile networks (called SDVMN) and then propose a hierarchical taxonomy based on the different levels of the carrier network. We also present an in-depth analysis about changes related to protocol operation and architecture when adopting SDN and virtualization in mobile networks. In addition, we list specific use cases and applications that benefit from SDVMN. Last but not least, we discuss the open issues and future research directions of SDVMN.

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Section: Flow-based Routingmentioning

confidence: 99%

SDN and Virtualization-Based LTE Mobile Network Architectures: A Comprehensive Survey

Nguyen

Kim

2015

Wireless Pers Commun

104

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“…SoftCell substitutes all legacy entities with Openflow switches and commodity middleboxes, and in this new mobile architecture, the routing mechanism utilizes tag-based routing instead of GTP tunneling. Similarly, the authors in [7] proposed a programmable mobile packet core architecture that replaces EPC entities with switches and routers. In contrast to SoftCell, the method in [7] still keeps the use of MME entity to handle control messages.…”

Section: Related Workmentioning

confidence: 99%

“…Similarly, the authors in [7] proposed a programmable mobile packet core architecture that replaces EPC entities with switches and routers. In contrast to SoftCell, the method in [7] still keeps the use of MME entity to handle control messages. Motoyoshi et al [8], Raza et al [9], Basta et al [10], and Sama et al [11] discussed several deployment scenarios that use SDN in future mobile networks or 5G networks.…”

Section: Related Workmentioning

confidence: 99%

“…With this reason, Openflow is also considered as the protocol between the control and data planes in SDN-based mobile networks. However, some studies have been limited in that they present straightforward realizations of SDN/Openflow but lack a detailed analysis of the necessary procedures [5][6][7][8][9][10][11][12][13]. These studies have only proposed that SDN/Openflow can provide much-needed benefits but have not shown the details for the new architecture.…”

Section: Introductionmentioning

confidence: 99%

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Proposal and evaluation of SDN‐based mobile packet core networks

Nguyen

Kim

2015

J Wireless Com Network

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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, Openflow, 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/Openflow in LTE/EPC architectures and then introduces a new Openflow-enabled EPC (OEPC) architecture. This work 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 Openflow protocol. The analysis shows that the data management of these procedures is simpler relative to traditional LTE/EPC. In addition, in order to prove that efficient data management takes place for these procedures relative to a traditional LTE/EPC architecture, the numbers of signalling messages that are processed by control entities (i.e., the MME and the controller) are taken into account as a metric to evaluate the OEPC architecture. Moreover, the results of a numerical evaluation also show the benefits of this proposal relative to another Openflow-based LTE/EPC architecture.

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“…For instance, the work presented by [1][2] [3] introduces the concept of extending Openflow protocol to support GTP tunnel operation, including traffic matching and en-and decapsulation operations to adapt and benefit from SDN characteristics in mobile networks. An alternative method of realizing the SDN solution is described in [4] [5], which is based on the concept of the elimination of GTP tunneling and employs the global view of the controller to handle users' operations. However, these studies are limited in that they present straightforward realizations of SDN/Openflow but lack a detailed analysis of the necessary procedures.…”

Section: Introductionmentioning

confidence: 99%