Inter-slice handover management in a V2X slicing environment using bargaining games
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Inter-slice handover management in a V2X slicing environment using bargaining games Nadia Mouawad1,2 • Rola Naja1,2 • Samir Tohme2
Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract This paper provides a V2X slicing logical architecture based on Software Defined Networking. We devote a special concern to inter-slice mobility management. In this context, we propose a complete mobility solution that handles resources management through the use of bargaining games enhanced by a heuristic and particular swarm optimization algorithm. More specifically, this work proposes a resource borrowing scheme to readjust resources of an overloaded slice in case of a inter-slice handover. The borrowing procedure is modeled via two bargaining games. Performance analysis shows that our proposed solution guarantees fairness between V2X slices, reduces the probability of call dropping and blocking probabilities and enhances resource utilization. Moreover, a comparative study between the proposed games is provided and analyzed. Keywords Network slicing Vehicle to everything Mobility management Inter-slice handover Bargaining game Resource borrowing
1 Introduction 5G networks are conceived to provide increased performance in terms of throughput, latency, reliability, and mobility while meeting various user quality of service (QoS) requirements for a rich portfolio of applications. One of the most important key drivers of 5G networks is the automotive vertical that entails the Vehicle-to-Everything (V2X) communication [1–3] category. V2X umbrella covers a multiplicity of use cases, characterized by diverse service requirements. Thus, 5G architecture should be enhanced in order to meet the highly demanding V2X requirements. & Nadia Mouawad [email protected] Rola Naja [email protected] Samir Tohme [email protected] 1
Doctoral School of Science and Technology, Lebanese University, Beirut, Lebanon
2
Li-Parad Laboratory, University of Versailles Saint Quentin, Versailles, France
Network slicing [4] is recognized by the research community as a prominent solution to fulfill the challenging V2X requirements. In fact, network slicing is defined as a concept of running multiple logical end-to-end networks as independent and isolated networks on a common physical infrastructure. This concept requires a high degree of flexibility and programmability that can be provided by the emerging Software Defined Networking (SDN) [5] to achieve better resource utilization and cost efficiency. In this 5G V2X slicing environment, the high mobility of vehicles causes the need to frequently change the Point of Attachment (PoA); this issue triggers a slice handover. The latter refers to a process where a user served by a current slice, should connect, due to mobility, to a target slice. We consider noteworthy to differentiate between two different types of slice handover: intra/inter slice handover. The former occurs when the user changes its PoA to a target PoA in th
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