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.
In the recent decade the VANET has been emerged as a prominent field for research and it receives considerable attention. VANET uses different specifications of the WLAN 802.11 family. It takes the basics of ad hoc network and the VANET creates a network with a collection of independent entities with the ability to communicate among themselves. The Adaption to the various 802.1 family causes a remarkable...
In this paper, we investigate the efficiency of the reactive routing approach in Vehicular Ad Hoc Networks (VANETs) with main focus on reducing the incurred overhead by control packets used for routes establishment. In AODV, for example, the excessive number of RREQs broadcasted in the network, to respond to the rapid change in network topology, usually hinders the fast transmission of some important...
There are some cases regarding information propagation over a wide area, such as Vehicle-to-Vehicle (V2V) communications, in which an end-to-end path does not exist, due to the non-uniform density of vehicles. In order to solve this problem, Delay Tolerant Network (DTN) architectures have been studied to facilitate message delivery in V2V communications. However, existing message delivery methods...
In this paper, a two purpose structure to simultaneously determine the shortest travel time path for a moving vehicle and efficient packet dissemination for traffic information messages has been presented. In order to reduce traveling time, vehicles are directed to the paths with lower density. Given that, such paths have a higher risk in radio coverage partitioning; it is more likely to reduce successful...
For smart traffic scenarios, communication between traffic participants is of high importance. Classical approaches (e.g. for information about congestions) employ a server-based architecture, which raises scalability and privacy concerns. In this paper, we propose OverDrive, a decentralized overlay-based geocast service that is applicable in smart traffic scenarios and not prone to the shortcomings...
We develop an intelligent distributed quality-of-service (QoS) control scheme which inter-operates between mobile routers, managing vehicular networks mobility, and road communication gateways (RCGs). This scheme manages vehicle-to-infrastructure (V2I) communications by enabling multi-homed vehicular networks to evenly distribute traffic among egress links of their mobile routers based on vehicular...
Extensive researches are being carried out to implement on-demand, QoS supported VANET routing algorithms. Reliability and timely information delivery are of high concern in VANETs. Providing optimal QoS over specific period of time with varying number of nodes (vehicles) is highly challenging the VANET research groups. This paper addresses the importance of providing optimal QoS for multimedia applications...
In vehicular ad hoc networks (VANETs), delivering messages to a specific location is difficult due to the high mobility of vehicles. In this paper, we propose a method for efficient message delivery in VANETs utilizing the route information in car navigation systems. In the proposed method, each car periodically exchanges the information on its current position and scheduled route in the car navigation...
A network traffic system can be tuned by three factors: (i) the topology of underlying infrastructure; (ii) the distribution of traffic resources; (iii) the routing strategy. In this paper, we propose a model to study the optimization of network capacity based on complex network theory. We study the optimization method of network traffic in several situations corresponding to the real cases. The model...
The rapid deployment of wireless networks has radically changed the development methods of applications and solutions. Nevertheless, there are still poorly served areas with network infrastructures, especially the road systems when considering the intelligent transportation systems and on-the-road Internet and entertainment services. While the most known solutions of vehicular communications network...
The navigation system has become one of the essential IT gadgets, especially to the drivers. In addition to the basic functionality of finding a shortest path between two nodes, recent navigation systems are required to provide extra intelligent services to the users. In this paper, we propose a Voronoi-based hybrid navigation system based on 3G wireless communication that has been commercially deployed...
Wireless mesh network (WMN) has become a popular access network architecture. But because of its multi-hop nature, co-channel interference and contention, the attainable capacity of a wireless node in a WMN is significantly less than the radio capacity. We propose a overlay architecture for a WMN, where a wireless-ring (WRing) is deployed over the regular mesh for carrying wireless mesh traffic only...
Since the globe is connected tightly by internet, to react the disruption of internet services efficiently and fairly is very important, especially for those real time transactions. However, there is a lack of literature about it. To our best knowledge, this paper is the first try to explore issues under such conditions. A framework, which consists of the traffic rerouting programming, the capacity...
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.