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Roadway safety is a serious public health issue. Vehicle crashes on the roads and highways cost loss of lives and damages to properties. Technology exists today to help identify and respond quickly to crashes, which is specially critical in rural areas. A feature that enables a car to warn its driver against an eminent crash or to recommend the proper speed based on traffic and weather conditions...
Video streaming over vehicular networks has considerable benefits for both road safety and entertainment. In this paper, realtime videos encoded with Scalable Video Coding (SVC) over cooperative vehicular networks are investigated to improve the performances of the video streaming services. We formulate a joint optimization problem to answer the questions of how to select the relay vehicular users...
The recent advances in wireless communication techniques have made it possible for fast-moving vehicles to download data from the Internet. For the reliable data upload and download, TCP can be used for vehicular networks. However, TCP requires the connection initialization using three-way handshaking for the data exchange between two end systems over the Internet. Thus, the efficient operation of...
Simulation is a common method used to examine the models and protocols before they are implemented in real systems. Vehicular networks present different characteristics which render most of their simulations inapplicable to real-world Vehicular Ad Hoc Networks. In these days, the important advancement has been made toward the realistic simulators. OMNeT++, SUMO, and Veins provide a decent way for...
The vehicle-to-vehicle (V2V) networks have become one of the significant topics for the future automobile technologies in recent. However, the high frequency wireless interfaces for V2V networks have some subjects such as the transmission range and the obstacles. Therefore, this paper proposed the Adaptive Array Antenna (AAA) control methods with the image recognitions for the DTN based V2V networks...
In Japan, since aging population and declining birth birthrate are advancing, most of the local areas are suffering from depopulation [1][2]. The decrease of economic activity is deriving poor social infrastructure such as bad road conditions and challenged information communication infrastructure. For those reasons, it is very difficult to keep the lives and properties of the residents in local areas...
In this paper, we introduce a road surface conditionunderstanding and sharing system. Traffic accidents and obstructionsdue to bad weather conditions and poor road conditions areserious social problems. It is necessary for drivers to understandweather and road conditions in advance to avoid traffic accidentsand obstructions and it is necessary to alert drivers to weatherand road conditions in order...
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