The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Recently, many efforts have been made to develop more efficient Inter-Vehicle Communication (IVC) protocols for on-demand route planning according to observed traffic congestion or incidents, as well as for safety applications. Because practical experiments are often not feasible, simulation of network protocol behavior in Vehicular Ad Hoc Network (VANET) scenarios is strongly demanded for evaluating...
Simulation of vehicular networks has been extensively studied in the last few years. In order to have an holistic view of the network functioning, communications and vehicle mobility aspects should be modeled in detail and fully integrated. This article presents a tool for simulating heterogeneous vehicular networks. The existing microscopic traffic simulator, DIVERT, has been extended by adding NS-3...
Vehicular ad hoc networks (VANETs) have become a promising application of mobile ad-hoc networks (MANETs). Since an inaccurate traffic warning message will impact drivers' decisions, and misguide drivers' behavior, one of the main challenges in VANETs is to forward messages in such a way that the information content can be trusted by receiving nodes. In this paper, we proposed a reputation management...
With recent advances in the development of wireless communication networks, vehicular networks have been receiving considerable research interest. One of the major applications of vehicular networks is Intelligent Transportation Systems (ITS). To exchange and distribute messages, geocast routing protocols have been proposed for ITS applications. Almost all of these protocols evaluate network-centric...
NCTUns is a novel network simulator/emulator that has many unique features over traditional network simulators/emulators. It runs on Linux and many papers/projects have used it for wireless vehicular network research. According to the NCTUns website (http://NSL.csie.nctu.edu.tw/nctuns.html), as of December 24, 2009, more than 16,164 people from 137 countries in the world have registered and downloaded...
The European Union (EU) Framework Program 7 (FP7) funded project, iTETRIS (An Integrated Wireless and Traffic Platform for Real-Time Road Traffic Management Solutions) targets to extend state of art in simulation of wireless vehicular cooperative systems for evaluation of road traffic management services and applications. In particular, iTETRIS addresses four important and distinct challenges: (a)...
Recent advances in portable technologies suggest that ad hoc networks will finally move out from the research and military harbors to the commercial world. In particular, vehicular safety and entertainment applications are mature for the market. Several major manufacturer are considering vehicular communications as an opportunity to increase the profitability and marketability of their vehicles. In...
Vehicular Ad Hoc Networks (VANETs) is attracting a growing attention from both research and industry, due to the important range of applications raised by VANETs, from road safety to traffic control, up to travel and comfort entertainment. Because of their particular characteristics, VANETs require the definition of specific networking techniques whose performance and feasibility need to be evaluated...
Accompanied by the continuous progression of the maturity of car-to-x communication protocols and corresponding system architectures, the need for integrated network simulation approaches which consider realistic channel modeling on the one hand and appropriate mobility models on the other hand becomes more and more observable. Moreover, in order to analyze the impacts of car-to-x applications on...
Many results have been published in the literature based on performance measurements obtained from simulations of vehicular networks (VANETs). These simulations use as input traces of vehicle movements that have been generated by traffic simulators which are based on traffic theory models. To our knowledge, no one has published any work based on actual large-scale recordings of vehicle movements....
In this paper, a synthetic natural environment concerning topography, weather, hydrological geology and sound is introduced, and a kind of virtual reality where virtual environment is interrelated and linked together with real one is also described. System model of vehicle simulator is given and distributed virtual environment architecture is put forward. The paper also introduces object management...
Many papers dealing with the TPMS (Tire Pressure Monitoring System) communication mechanisms between sensors (transmitters) and receiver have been published, but most of the work has been focused on the particular effects of the radiofrequency channel [1], the antenna design [2], the communication protocol or the mechanical housing. The full transmission context analysis lacks to the understanding...
Green ICT (Information and Communication Technology) is a new focus with the goal of saving energy by optimizing mobile network communications and ultimately protecting the natural climate. Here we consider the design of vehicular ad-hoc networks (VANETs) to reduce energy consumption due to communications. Based on a realistic transport traffic scenario on a motorway, rdquoM4rdquo in UK, this paper...
Computer simulation of the road traffic is a very important tool for analysis and control of traffic networks. Because the simulation of a large traffic network (e.g. an entire city) can be computationally intensive, many simulators have been adapted for distributed computing environment. In this paper, an efficient communication protocol for distributed simulation of road traffic is described. The...
Integration and system performance issues that arise from fire control electronics integration in a virtual battlefield are addressed. Particularly, solutions are presented for communication obstacles resulting from models running at different frequencies across CAN bus and Ethernet. A simulation environment is constructed using simplified Simulink models and real-time computers to allow a convenient...
NCTUns is a high-fidelity network simulator and emulator. By using a novel kernel re-entering simulation methodology, it provides many unique advantages over traditional network simulators and emulators. For this reason, since its public release on November 1, 2002, as of February 2, 2009, more than 13,838 people from 130 countries in the world have registered at its Web site to download it and these...
Motivated by the recent surge in vehicular ad-hoc network (VANET) research and the promise of high-impact applications such as safety, navigation and infotainment services, we consider the impact of mobility mis-modeling on the design and development of this class of distributed systems. Focusing on urban environments, we use a state-of-the-art car traffic simulator to extract some of the key connectivity...
Vehicular ad-hoc network (VANET) is surging in popularity, in which vehicles constitute the mobile nodes in the network. Due to the prohibitive cost of deploying and implementing such a system in real world, most research in VANET relies on simulations for evaluation. A key component for VANET simulations is a realistic vehicular mobility model that ensures that conclusions drawn from simulation experiments...
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...
Besides safe navigation (e.g., warning of approaching vehicles), car to car communications will enable a host of new applications, ranging from offlce-on-the-wheel support to entertainment. One of the most promising applications is content distribution among drivers such as multi-media files and software updates. Content distribution in vehicular networks is a challenge due to network dynamics and...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.