Ecole d'ingénieur et centre de recherche en Sciences du numérique

On using SDN in 5G: the controller placement problem

Ksentini, Adlen; Bagaa, Miloud; Taleb, Tarik

GLOBECOM 2016, IEEE Global Communications Conference, Exhibition and Industry Forum, 4-8 December 2016, Washington, USA

To integrate Software Defined Networking (SDN) in the envisioned 5G system, a separation of the control and user data plane functions of the Evolved Packet Core (EPC) is required. This separation will impact mainly the functions available at the Serving GateWay (SGW) and Packet data GateWay (PGW) elements, and will result in two new entities; i.e. the S/PGW-C and S/PGW-U (PGW-C and PGW-U). The S/PGW-C integrates all the control plane functions (such as signaling and tunnel creation), while S/PGW-U contains only forwarding functions. The S/PGW-C will control the S/PGW-U in order to forward the UE traffic to the appropriate destinations by enforcing rules e.g., using the Openflow protocol. Usually, the S/PGW-C will run as a Virtual Network Function (VNF) running on a Virtual Machine or Container instantiated over a federated cloud. In this paper, we focus on the problem of the SGW-C placement, where a tradeoff is needed between reducing the SGW relocation frequency and balancing the traffic load among the underlying SGW-C VNFs. We formulate this problem using optimisation models, and a fair solution (i.e. Pareto optimal) is derived using Nash Bargaining game and the threat point.

Document Bibtex

Titre:On using SDN in 5G: the controller placement problem
Département:Systèmes de Communication
Eurecom ref:5092
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Bibtex: @inproceedings{EURECOM+5092, year = {2016}, title = {{O}n using {SDN} in 5{G}: the controller placement problem}, author = {{K}sentini, {A}dlen and {B}agaa, {M}iloud and {T}aleb, {T}arik}, booktitle = {{GLOBECOM} 2016, {IEEE} {G}lobal {C}ommunications {C}onference, {E}xhibition and {I}ndustry {F}orum, 4-8 {D}ecember 2016, {W}ashington, {USA} }, address = {{W}ashington, {\'{E}}{TATS}-{UNIS}}, month = {12}, url = {} }
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