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Open AccessArticle

Towards Dynamic Controller Placement in Software Defined Vehicular Networks

1
LAAS-CNRS, Université de Toulouse, CNRS, 31400 Toulouse, France
2
LAAS-CNRS, Université de Toulouse, CNRS, INSA, 31400 Toulouse, France
3
LAAS-CNRS, Université de Toulouse, CNRS, UT2J, 31100 Toulouse, France
*
Authors to whom correspondence should be addressed.
Sensors 2020, 20(6), 1701; https://doi.org/10.3390/s20061701
Received: 1 February 2020 / Revised: 6 March 2020 / Accepted: 13 March 2020 / Published: 18 March 2020
(This article belongs to the Special Issue Vehicular Network Communications)
The emerging SDVN (Software Defined Vehicular Network) paradigm promises to bring flexibility and efficient resource utilization to vehicular networks, enabling the emergence of novel Intelligent Transportation Services. However, as it was initially designed with wired network in mind, applying the SDN paradigm to a vehicular context faces new challenges related to the peculiar characteristics of this network (high node mobility and node density, and the presence of wireless links). In this paper, we focus on one of the critical architectural elements of SDVN, namely, the SDN Controller Placement, and promote the use of dynamic placement methods that take into account the dynamicity of vehicular networks’ topology. We also describe the different approaches towards a dynamic controller placement and also propose an ILP (Integer Linear Programming) based dynamic placement method that adaptively readjusts the number and placement of controllers according to road traffic fluctuations. The proposed method is evaluated using a realistic traffic trace from Luxembourg City. Simulation results show that our approach outperforms the static approach as proposed in the literature. View Full-Text
Keywords: vehicular communication; controller placement problem; optimization; SDN; software defined vehicular network vehicular communication; controller placement problem; optimization; SDN; software defined vehicular network
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MDPI and ACS Style

Toufga, S.; Abdellatif, S.; Assouane, H.T.; Owezarski, P.; Villemur, T. Towards Dynamic Controller Placement in Software Defined Vehicular Networks. Sensors 2020, 20, 1701. https://doi.org/10.3390/s20061701

AMA Style

Toufga S, Abdellatif S, Assouane HT, Owezarski P, Villemur T. Towards Dynamic Controller Placement in Software Defined Vehicular Networks. Sensors. 2020; 20(6):1701. https://doi.org/10.3390/s20061701

Chicago/Turabian Style

Toufga, Soufian; Abdellatif, Slim; Assouane, Hamza T.; Owezarski, Philippe; Villemur, Thierry. 2020. "Towards Dynamic Controller Placement in Software Defined Vehicular Networks" Sensors 20, no. 6: 1701. https://doi.org/10.3390/s20061701

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