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ISO TC204 and ETSI TC ITS are developing a set of standards for Cooperative ITS (Cooperative Intelligent transportation Systems) which will allow ITS stations i.e. vehicles, the road infrastructure and other peers reachable through the Internet to cooperate and exchange information with one another in order to enhance road safety, traffic efficiency and comfort for all road users. In situations where...
Vehicle chatting is one of the most promising applications in VANETs, which allows like-minded vehicles to chat on the topics of common interest on the road. However, there exist some newly emerging privacy challenging issues in vehicle chatting application, such as how to find a like-minded vehicle on the road and how to prevent one's interest privacy (IP) from others who are not like-minded? In...
ITS solutions require distributing content to vehicles traveling on streets and highways. This is becoming a more natural evolution in response to the pervasiveness of wireless devices in vehicles and urban areas. We propose a hierarchical architecture for ITS content delivery. The architecture utilizes the concepts and mechanisms of service-orientation to address the stringent requirements of vehicular...
Vehicular ad hoc networks (VANETs) are important component for the development of Intelligent Transportation System. Due to the features of VANET, data dissemination is an important issue that has to be addressed. In this paper we propose a direction based clustering algorithm for data dissemination. This protocol is used to estimate the density of vehicles on a given road. As in any clustering algorithm,...
The effectiveness of Intelligent Transportation Systems (ITS) depends on their ability to collect contextual data from various sources and appropriately generate and transport comprehensible, reliable and timely content to users. In such applications, the exchanged content is structured in space and time. Peer-to-peer(P2P) networks are the natural choice these applications due to their fault-tolerance,...
Many issues are still open in vehicular networks. Road experiments are important to validate new ideas and to guide new theoretical development. They offer a better understanding of the VANET. This paper deals with experiments on the road. A simple architecture is sketched; it is composed of off-the-shelf hardware and a software suite, well adapted to the prototyping of new applications and protocols...
A vehicular ad hoc network (VANET) is a network of intelligent vehicles that communicate with other vehicles in the network. The main objective of VANET is to provide comfort and safety for passengers. In addition, various transaction based services, such as information about gas prices, restaurant menu, and discount sale, can be provided to drivers. In order to make these services available, there...
NCTUns is a novel network simulator and emulator that has many unique features over traditional network simulators and emulators. It is an open-source software running on Linux and is being used by many researchers in the world. According to the NCTUns official Web site (http://NSL.csie.nctu.edu.tw/nctuns.html), as of June 1, 2008, more than 11,546 people from 124 countries have registered and downloaded...
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