Flexible handover solution for vehicular ad-hoc networks based on software defined networking and fog computing

Abstract

<p>Vehicular ad-hoc networks (VANET) suffer from dynamic network environment and topological instability that caused by high mobility feature and varying vehicles density. Emerging 5G mobile technologies offer new opportunities to design improved VANET architecture for future intelligent transportation system. However, current software defined networking (SDN) based handover schemes face poor handover performance in VANET environment with notable issues in connection establishment and ongoing communication sessions. These poor connectivity and inflexibility challenges appear at high vehicles speed and high data rate services. Therefore, this paper proposes a flexible handover solution for VANET networks by integrating SDN and fog computing (FC) technologies. The SDN provides global knowledge, programmability and intelligence functions for simplified and efficient network operation and management. FC, on the other hand, alleviates the core network pressure by providing real time computation and transmission functionalities at edge network to maintain the demands of delay sensitive applications. The proposed solution overcomes frequent handover challenges and reduces the processing overhead at core network. Moreover, the simulation evaluation shows significant handover performance improvement of the proposed solution compared to current SDN based schemes, especially in terms of handover latency and packet loss ratio under various simulation environments.</p>

A Low-overhead Network Monitoring for SDN-Based Edge Computing

“…However, these works are based on the traditional network that does not have enough flexibility to control the network. To overcome this issue, we are witnessing research works applying Software-Defined Networking (SDN) as their network solution for MEC [9]- [14].…”

Big data vehicle density management in vehicular ad-hoc network

“…Mouad et al [24], proposed a big data-based technique to balance different roads of the city by directing vehicles to their destination relying on the estimated time of arrival. The research paper identified as [25], introduces a method that proposes a flexible transfer especially for VANET by including fog computing and software defined networking (SDN) technologies. The experiment evaluation proves a good transfer performance amelioration of the proposed solution.…”