Abstract
In this work, we present an innovative approach for effective cross-network information dissemination, with applications to vehicular ad hoc networks (VANETs). The proposed approach, denoted as "Cross-Network Effective Traffic Alert Dissemination" (X-NETAD), leverages on the spontaneous formation of local WiFi (IEEE 802.11b) VANETs, with direct connections between neighboring vehicles, in order to disseminate, very quickly and inexpensively, traffic alerts received from the cellular network. The proposed communication architecture has been implemented on Android smartphones. The obtained experimental results show that an effective cross-network information dissemination service can entirely rely on smartphone-based communications. This paves the way to future Internet architectures, where vehicles will play a key role as information destinations and sources.
Highlights
In the last few decades, Intelligent Transportation Systems (ITSs) have attracted the worldwide interest of researchers, automotive companies and governments
We analyze the experimental results in different environments, obtained with a test-bed composed by four LG Optimus One (P-500) smartphones and a Samsung Galaxy Tab tablet, all equipped with release 2.3.3 of the Android OS
We preliminarily investigate the relationship between the Packet Error Rate (PER) and a couple of physical parameters, namely, the Institute of Electrical and Electronics Engineers (IEEE) 802.11 transmission data rate
Summary
In the last few decades, Intelligent Transportation Systems (ITSs) have attracted the worldwide interest of researchers, automotive companies and governments. A key role in ITSs should be played by the so-called Inter-Vehicular Communications (IVCs), a set of new technologies, standards and protocols that should give full networking capabilities to the vehicles. The local area connectivity is provided through dedicated On-Board Units (OBUs), implementing a set of Dedicated Short Range Communications (DSRCs) technologies, such as the Institute of Electrical and Electronics Engineers (IEEE) 802.11p [2] or the European Telecommunications Standards Institute (ETSI) Intelligent Transport Systems (ITS)-G5 [3] standards, able to provide a fast transport service in a limited geographical area of interest
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