João N. Isento

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Vehicular Delay-Tolerant Networks (VDTNs) is a breakthrough based DTN-based solution to provide vehicular communications under challenging scenarios characterized by long delays and sporadic connections. VDTN uses a store-carry-and-forward paradigm, inspirited from Delay Tolerant Networks, which allows forward bundles to asynchronously reach the destination(More)
Vehicular Delay-Tolerant Networks (VDTNs) are a disruptive network architecture based on delay-tolerant network paradigm, gathering contributions from opportunistic and cooperative networks, and optical burst switching paradigm. VDTNs assume out-of-band signaling and handle non-real time applications with a low cost network infrastructure. In VDTNs,(More)
Vehicular communications emerged as a modern alternative to increase road traffic safety and also promote, through technologies, the development of applications and services to the travelers. In this context, Vehicular Delay Tolerant Networks (VDTNs) arise as innovative solution since it presents an appropriate network architecture, supporting communication(More)
As an application of the concept of delay-tolerant network (DTN) for vehicular communications, the vehicular delay-tolerant network (VDTN) architecture was proposed to cope with issues, such as highly dynamic network topology, short contact durations, disruption, intermittent connectivity, variable node density, and frequent network fragmentation. These(More)
Many investments are being made in vehicular networking due to social and technological benefits that comes with the development of services and applications for the community, including safety issues. Vehicular Delay-Tolerant Networks (VDTNs) appear as innovative network architecture, able to outline communication challenges caused by issues like variable(More)
Vehicular Delay-Tolerant Network (VDTN) is a new disruptive network architecture where vehicles act as the communication infrastructure. VDTN follows a layered architecture based on control and data planes separation, and positioning the bundle layer under the network layer. VDTN furnishes low-cost asynchronous communications coping with intermittent and(More)
The single characteristics of vehicular communications, the various network scenarios, and the traffic load generated by a wide range of vehicular applications are key aspects that make challenging to select an appropriated routing protocol for these networks. In such a context, this paper presents a simulation-based performance analysis study of(More)