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Localization and exchanged position information plays a big role in Vehicular Ad-Hoc Networks (VANET). Several network services and applications, such as safety messages, require location information. The data are exchanged between vehicles within their radio communication range. In real life implementation, direct communication can be interfered and blocked by obstacles on the road preventing two...
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...
The recent advances and wide availability of wireless access technologies and inter-vehicle communication systems are expected to culminate in the integration of different wireless networks such as the IEEE 802.11, 3G/4G, and WiMax, multimedia and sensor networks in the next generation vehicular networks. However, due to high mobility of vehicles, several issues remain to be resolved before real-time...
Vehicular Ad Hoc Networks (VANETs) have been widely studied, and the deployment of such networks is likely to happen soon as the required technology and commercial opportunities are already available. Most of applications proposed for these networks require a localization mechanism with reasonable accuracy. In addition to applications, most protocols rely on the availability of a system that determines...
The Internet access from vehicular networks is gaining great interest from the research community. In fact, vehicles should be able to connect to the Internet and communicate with different networks through gateways. Guaranteeing safety on the roads is the main objective of vehicular networks. Safety applications need to collaborate with other types of services for efficient safety assurance. Consequently,...
Vehicular Ad Hoc Networks are a promising technology that provides several interesting new functionalities to drivers and passengers. These services are spread through a wide variety of applications, each with specific requirements in terms of latency, jitter and bandwidth, among other metrics. For this reason, it is crucial to provide mechanisms that can be used to offer different levels of communication...
Recently, vehicle networks are gaining great deal of attention from the research community. In order to provide efficient and pervasive road communication, Next Generation Vehicular Networks (NVN) are considered a promising solution. NVNs have unique characteristics and face challenging problems. Consequently, it is hard to use the traditional mechanisms and protocols in this type of network. Service...
Data gathering and localization algorithms for vehicular ad hoc networks (VANets) are envisioned as key technologies for the near future. These technologies will pave the way for a number of potential applications that required precise positioning information that GPS systems are not able to provide. However, high mobility of vehicles in a VANet introduces frequent topology changes that negatively...
Energy efficiency and low message delay are the basic QoS requirements for data collection in vehicular ad-hoc and sensor networks. In order to achieve these requirements, many solutions have been developed by attaching collectors/sinks to vehicle or aircraft and moving them either randomly or along a predefined route. This paper presents an adaptive data gathering protocol (ADG) that employs multiple...
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