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The Optimized Link State Routing (OLSR) protocol, early designed for Mobile Ad hoc Networks (MANET), has been customized and evaluated for various Vehicular Ad hoc Network (VANET) scenarios. Most of the related work focus on changing OLSR parameters in order to adapt it to the high dynamicity of VANET due to high velocity of its nodes. However, they keep using OLSR with its native clustering scheme,...
In the vehicular network environment, geographical forwarding may be more desirable in delivering ITS data. Geographical forwarding requires the geographical location information of a destination node/area and/or that of the sender to be delivered along with the ITS data. For that, in the IPv6-based vehicular network, instead of using a shim header between layer 2 and 3 of the GeoNetworking protocol,...
In this study, we propose a variation of the RAdNet for vehicular environments (RAdNet-VE). The proposed scheme extends the message header, mechanism for registering interest, and message forwarding mechanism of RAdNet. Based on results obtained from simulation experiments, we compare the performance of RAdNet-VE against that of RAdNet, a basic content-centric network (CCN) using reactive data routing,...
The VANET (Vehicular Ad hoc Network) is a collection of mobile nodes forming a temporary network on variable topology, operating without base station and without centralized administration. The characteristics of VANET network that distinguishes it from other ad hoc networks, such as high mobility and communication with the infrastructure to support security or comfort applications, have prompted...
Vehicular adhoc networks come out to be a promising solution for ensuring traffic and road safety on highways. However this area induces communication challenges such as topology dynamics, and connectivity losses. Today's Vanet demand a sound planning to make architectural level decisions. Integrating Vanet with emerging Software defined Networking brings ground-breaking networking innovation. Recent...
Vehicular Ad-hoc Network (VANET), an unplanned network formed by vehicles on the road to improve road safety and driving conditions. Today, the vehicle count increases and the roads are becoming more hazardous by the effect of congestion and increased the likelihood of collision. Safety messages are to be routed to the vehicles in timely and correct manner. Because of the wireless medium, VANET messages...
The VaNetLayer is a cluster-based approach to handle communications in vehicular ad-hoc networks, furnishing an abstraction of fixed geographical regions served by virtual nodes as a means to tackle the challenges raised by the mobility of the real nodes. Previous studies have shown that the VaNetLayer can be used to implement routing protocols that achieve good performance —in terms of packet delivery...
Vehicular networks have a diverse range of applications that vary from safety, to traffic management and comfort. Vehicular communications (VC) can assist in the ecorouting of vehicles in order to reduce the overall mileage and CO2 emissions by the exchange of data among vehicle-entities. However, the trustworthiness of these data is crucial as false information can heavily affect the performance...
Message forwarding between vehicles has become an important aspect in Vehicular ad hoc network (IEEE 802.11e) where message gets forward from the source node to the destination node. As VANET is a dynamic network where independent identity node helps each other to forward the message. However many times nodes are not interested in forwarding the message due to their selfish nature or to save their...
The message propagation with low delay becomes a fundamental challenge in VANET. The vehicle Ad hoc networks are a very appealing solution for many safety applications like assistance driver, warning about collision of vehicle, warning of distance between vehicles, cooperation during driving and control for cruise cooperation. To operate these application the vehicles are fitted with those equipments...
Broadcasting is an effective routing paradigm for data dissemination in vehicular ad hoc networks (VANETs). One concern that arises with broadcasting is the broadcast storm problem, which would cause node contentions and data collisions, and thus degrade the transmission efficiency of a network. This paper proposes a Dynamic trAnsmission delaY based broadcast (DAYcast) protocol for a VANET. To alleviate...
Recently, Information Centric Networking (ICN) has attracted much attention also for mobiles. Unlike host-based communication models, ICN promotes data names as the first-class citizen in the network. However, the current ICN name-based routing requires Interests be routed by name to the nearest replica, implying the Interests are flooded in VANET. This introduces large overhead and consequently degrades...
In this paper, we propose an intersection-based connectivity-aware routing protocol (iCAR) for vehicular ad hoc networks (VANETs) to enable infotainment and interactive applications, as well as multi-hop Internet access in urban environments. iCAR is a novel protocol that takes into consideration real-time vehicular traffic information and the experienced packet delivery delay per road, in order to...
Current geocasting algorithms for VANETs are being designed to enable either private or reliable communications, but not both. Existing algorithms preserve privacy by minimizing the information used for routing, and sacrifice message delivery success. On the other hand, reliable protocols often store node information that can be used to compromise a vehicle's privacy. We propose a secure, privacy-preserving...
Vehicular Ad hoc Networks are an emerging tech- nology. VANETs and MANETs (Mobile Ad hoc Networks) share the same principle. Hence most protocols such as AODV (Ad hoc On-Demand Distance Vector Routing) and DSR (Dynamic Source Routing) which are working on MANET can be also applicable on VANET. However VANET differs from MANET by its dynamic topology due to the vehicle's frequently fast movement. So...
Vehicular networks have brought the opportunity for new applications to improve the safety and driving experiences. With the help of VANETs, data can be disseminated among vehicles to transfer important data, such as collision warnings. Conventionally, structure based topology like R-Tree is used for stationary networks like wireless sensor networks. However, recent research shown that the additional...
The high mobility and variability of road traffic has hampered the design of efficient communication protocols and the deployment of new services in vehicular networks. Nevertheless, the newly-introduced notion of virtual mobile nodes (VMNs) has the potential to turn wireless ad hoc networks into more predictable environments, facing the significant challenges raised by the mobility of the (real)...
Recent benchmarks indicate that the use of public key cryptography results in non-negligible verification times on platforms with limited processing power. In this paper, we focus on multi-hop Inter-Vehicle Communication and show that the increase in message processing time in vehicular nodes degrades network performance, by decreasing the number of messages that reach destinations. We propose Adaptive...
Recent studies on service discovery protocols in vehicular networks have shown promising results. However, very little work has been reported on how to integrate the fault tolerance feature into these mechanisms. This feature is vital for the success of the deployment of service discovery protocols in vehicular networks. Drivers on their cars should not have their requests dissatisfied or their connections...
Mobile Ad Hoc networks (MANETs) are gaining increased interest due to their wide range of potential applications in civilian and military sectors. The self-control, self-organization, topology dynamism, and bandwidth limitation of the wireless communication channel make implementation of MANETs a challenging task. Vehicular Ad Hoc Networks (VANETs) are a special kind of MANETs that aims at providing...
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