Abstract
Vehicular Delay-Tolerant Networks (VDTNs) are a breakthrough based DTN solution used to provide vehicular communications under challenging scenarios, characterized by long delays and sporadic connections. Using the store-carry-and-forward paradigm, this technology allows in-transit bundles to asynchronously reach the destination hop by hop over traveling vehicles equipped with short-range wireless devices. The VDTN architecture assumes out-of-band signaling with control and data planes separation and follows an IP over VDTN approach. This paper presents a real-world VDTN prototype evaluated through a safety application and a Traffic Jam Information Service. It also demonstrates the real deployment of this new vehicular communication approach. The real testbed is an important contribution since some complex issues presented in vehicular communication systems can be studied more accurately in real-world environments than in a laboratory approach. The results confirm that real deployment of VDTNs is doable and can be seen as a very promising technology for vehicular communications, although it requires appropriated technologies for outline interferences and quality of service support.
Highlights
Vehicular networking emerges as an important solution to promote road safety improvements [1], low-cost communication for developing regions [2], and telematics and infotainment applications, which enhance drivers’ experience [3]
A real-world performance analysis was realized in order to prove the feasibility of the proposed services in a real Vehicular Delay-Tolerant Networks (VDTNs) environment
This paper proposed the design and construction of a real-world testbed for Vehicular Delay-Tolerant Networks (VDTNs) created to demonstrate the real deployment of this architecture and evaluate the network performance with a safety application and a traffic jam system
Summary
Vehicular networking emerges as an important solution to promote road safety improvements [1], low-cost communication for developing regions [2], and telematics and infotainment applications, which enhance drivers’ experience [3]. These networks have been largely influenced by government investments in the last years. Two safety applications (called Warning Message and Traffic Jam Information Services) are created to demonstrate the robustness of the VDTN architecture and attest, in a real scenario, all the main concepts of VDTNs. The real deployment of VDTNs presented in this paper includes the design and assembly of a specific embedded hardware with suitable software for managing vehicular communications in a real environment.
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