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.
Broadcast is a typical message dissemination mechanism for emergency notifications, traffic information, notice and advertisement messages in VANETs. In this paper, we identify the cases that the broadcast message cannot be propagated with the Contention-Based Forwarding approach which is one of the most representative dissemination approaches for VANETs and propose road-based broadcast message dissemination...
Vehicular Ad-Hoc Networks (VANETs) are an important research area due to the potential benefits they could bring to traffic optimisation in urban environments. The communication protocols used within such networks, due to the intrinsic properties of such environments, reflect a series of characteristics which set them apart from common approaches. Routing messages, using a carry-and-forward strategy...
In this paper, we address the reliable alarm message dissemination in Vehicular Ad hoc NETworks (VANETs) environment. We study various techniques to disseminate emergency data, after a car crash, within a group of vehicles. We consider a trajectory-based data dissemination technique to perform broadcast flooding task optimization, and compare it with a pure flooding scheme. For the evaluation, we...
A number of Intelligent Flooding Schemes have been recently proposed in order to optimize message dissemination in Vehicular Ad Hoc Networks. In this paper we focus on a scheme which exploits a distributed timer-based contention mechanism for allowing only contention winners to forward the message and to suppress other potential forwarders. In particular, at each hop along the message propagation...
Vehicular ad hoc networks, also known as VANETs, enable vehicles which are not necessarily within the same radio transmission range to communicate with each other. In addition to allowing direct communication between vehicles, VANETs also enable vehicles to connect to Roadside Units (RSUs) which are inexpensive infrastructure that have the capability of communicating with each others and with passing...
Vehicular ad hoc network (VANET) applications are principally categorized into safety and commercial applications. Efficient traffic management for routing an emergency vehicle is of paramount importance in safety applications of VANETs. In the first case, a typical example of a high dense urban scenario is considered to demonstrate the role of penetration ratio for achieving reduced travel time between...
In opportunistic routing the next relay is selected at each hop of each packet depending on the local pattern of simultaneous transmitters. The protocol considered in this paper assumes that at each hop, the optimal relay is chosen in a greedy way such that the packet receiver minimizes the remaining distance to the destination. The selection between potential relays is done using a logarithmic scale...
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.