Abstract
Vehicular ad-hoc networks (VANETs) are self-organizing, self-healing networks which provide wireless communication among vehicular and roadside devices. Applications in such networks can take advantage of the use of simultaneous connections, thereby maximizing the throughput and lowering latency. In order to take advantage of all radio interfaces of the vehicle and to provide good quality of service for vehicular applications, we developed a seamless flow mobility management architecture based on vehicular network application classes with network-based mobility management. Our goal is to minimize the time of flow connection exchange in order to comply with the minimum requirements of vehicular application classes, as well as to maximize their throughput. Network simulator (NS-3) simulations were performed to analyse the behaviour of our architecture by comparing it with other three scenarios. As a result of this work, we observed that the proposed architecture presented a low handover time, with lower packet loss and lower delay.
Highlights
Vehicular Ad Hoc Network (VANET) is a rising subclass of Mobile Ad Hoc Networks which provides wireless communication among vehicles as well as between vehicles and roadside devices
There are some groups of the Internet Engineering Task Force (IETF), such as the IETF mobility extensions for IPv6 (MEXT) [4] and IETF-based network mobility extensions (NETEXT) [5], which have been working on the development and elaboration of a protocol that allows the use of more than one interface simultaneously
The seamless flow mobility management architecture (SFMMA) is divided into three modules: one module that acts in Mobility Access Gateway (MAG), one in Local Mobility Anchor (LMA) (Figure 2(a)), and another module that is embedded into the vehicle (Figure 2(b))
Summary
Vehicular Ad Hoc Network (VANET) is a rising subclass of Mobile Ad Hoc Networks which provides wireless communication among vehicles as well as between vehicles and roadside devices. To allow the use of more than one network interface simultaneously, the Internet Engineering Task Force (IETF) has developed the technology of IP flow mobility, which can divide IP flows among multiple links according to application requirements and user preferences. To avoid overloading the wireless network, the NETEXT discusses the use of a network-based IP flow mobility in Proxy Mobile IPv6 (PMIPv6) This solution has the limitation where the flow mobility of the mobile nodes (MNs) should be initiated and controlled only by network-side entities [6]. In this paper we propose and evaluate a seamless flow mobility management architecture (SFMMA) in vehicular communication networks.
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