Serwis Infona wykorzystuje pliki cookies (ciasteczka). Są to wartości tekstowe, zapamiętywane przez przeglądarkę na urządzeniu użytkownika. Nasz serwis ma dostęp do tych wartości oraz wykorzystuje je do zapamiętania danych dotyczących użytkownika, takich jak np. ustawienia (typu widok ekranu, wybór języka interfejsu), zapamiętanie zalogowania. Korzystanie z serwisu Infona oznacza zgodę na zapis informacji i ich wykorzystanie dla celów korzytania z serwisu. Więcej informacji można znaleźć w Polityce prywatności oraz Regulaminie serwisu. Zamknięcie tego okienka potwierdza zapoznanie się z informacją o plikach cookies, akceptację polityki prywatności i regulaminu oraz sposobu wykorzystywania plików cookies w serwisie. Możesz zmienić ustawienia obsługi cookies w swojej przeglądarce.
Vehicular ad hoc networks (VANETs) have emerged as a paradigm for sharing information among vehicles and infrastructure that has the potential to provide road safety and travellers comfort. The bandwidth limitation is one of the main challenges of this technology, however, the growing perspectives of applications demand more and more service channels. In this work we propose two novel channel hopping...
Vehicular Ad Hoc Networks (VANET) are the fastchanging networks for connected vehicles, in which Vehicle- to-Vehicle and Vehicle-to-Infrastructure communication are the basis for technologies aiming at reducing accidents and improving operation. DSRC Safety Applications, designed to assist drivers in order to avoid accidents, might be subjected to malicious attacks, such as GPS time spoofing attacks,...
This paper is faced with group sensing problem, where HD map producers motivate private cars to collect data from real world. Group sensing needs vehicles to communicate physically, and drivers to collaborate strategically. First we consider communication module, three VANET-based methods are proposed to achieve inter-vehicle message relaying. Secondly, we consider collaboration module which motivates...
In a vehicular ad hoc network (VANET), vehicles attempt to improve safety by emitting safety messages that others receive to increase their awareness of one another. Yet, the conflicting data delivery requirements of safety applications can potentially jeopardize safety itself. While many information dissemination techniques have been proposed to improve data delivery in a VANET, such as flooding...
Vehicular systems that intend to aid the driver to increase road safety and reduce road accidents might differ in the levels of safety provided if they are based on different functioning and visualization concepts. In this paper we present a flexible and adjustable 3-dimensional driving simulator based on Open-StreetMap (OSM) data that integrates Vehicular Ad Hoc Network (VANET) communication capabilities...
In Vehicular Ad Hoc Networks (VANETs), a vehicle could be identified and tracked by eavesdropping its messages (e.g., beacons) by an adversary, since these messages contain personal information such as the location of the vehicle. This attack leads to threats on the user's location privacy. Frequent changing pseudonyms are accepted as a solution to protect the location privacy of users in VANETs....
In this paper, we compare two different connected cruise control strategies that utilize vehicle-to-vehicle (V2V) communication to monitor multiple vehicles ahead in order to save fuel. One strategy uses direct feedback while the other is based on dynamic optimization that assigns the control action in a receding horizon fashion while relying on preview information about the vehicle immediately ahead...
Vehicular Ad hoc Networks (VANETs) are an important component of the advanced information networking for inter-operable communications with a wide range of networks. In our previous work, we proposed a method of Enhanced Message Suppression Controller (EMSC) considering delayed ack for vehicular Delay/Disruption Tolerant Networking (DTN). In this paper, we evaluate the performance of our proposed...
An emerging technology to enhance smart transportation is Vehicular Ad hoc Network (VANET) where vehicles are treated as nodes. It communicates with fixed road landed infrastructure (RSU) and other vehicles via onboard unit (OBU). Efficient and reliable information dissemination among the vehicles in sparse environment is still challenging. Also finding a shortest path from source to destination is...
Vehicular ad hoc network is widely used to broadcast emergency, weather and road conditions among vehicles. In this paper, an algorithm is proposed to transmit weather information to the vehicles which are travelling in urban areas. The system uses a set of algorithms and rules to determine dangerous weather situation on roads. It is proposed to use Weather_Forecast algorithm to predict the weather...
The deployment of Intelligent Transportation Systems (ITS) is a challenge for industry and scientific community. Traffic characteristics change widely within a single day, therefore, ITS engineers and researchers must deal with that dynamic behavior. On the other hand, once the ITS depends on networking services, specific studies are required to consider the communication parameters along with vehicle...
Vehicular ad-hoc networks (VANET) have gained importance in recent years due to urbanization and technical advancements. Vehicle to vehicle (V to V) and Vehicle to infrastructure (V to I) are important types of VANET which have been exploited to their optimum use for the comfort and safety of the people on roads and off roads. With the several other features of VANET which are already being implemented...
Accidents have become one of the usual occurrences on roads throughout the world. Thousands of people lose their lives or become disabled every day. Speed limits are enforced to control the movement of vehicles along traffic lanes. As per the research statistics, violation of speed limits by the drivers is one of the significant reasons for the road accidents. Detecting the drivers who violate speed...
Vehicular ad hoc network (VANET) is an emerging network technology with the goal of providing public safety, traffic coordination and infotainment for the comfort of passengers in moving vehicles. However, it faces the challenge of not providing the expected quality of service (QoS) when streaming videos online. This challenge emanate from the variable topology infrastructure caused by intrinsic high...
This paper discusses vehicle traffic congestion which leads to air pollution, driver frustration, and costs billions of dollars annually in fuel consumption. Finding a proper solution to vehicle congestion is a considerable challenge due to the dynamic and unpredictable nature of the network topology of vehicular environments, especially in urban areas. Recent advances in sensing, communication and...
In recent years, there has been growing interest in the design of intelligent transportation systems (ITS) using vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communication technologies. These systems allow vehicles to share GPS-based information, such as latitude, longitude, speed and heading, as well as important vehicle data such as brake events, throttle position, turn signal status,...
In vehicular ad hoc network, emergency warning messages exchange could improve vehicle safety. Emergency warning messages should be exchanged with high reliability and low delay. Currently, reliability of emergency warning messages is guaranteed by repeating broadcast. In current research, how many times repeated broadcast per second was not discussed. In this paper, a speed-based broadcast rate model...
As a special yet important part of vehicular ad hoc networks (VANETs), Bus-VANETs have attracted much research attention in recent years. Most of existing studies focused on developing routing protocols in Bus-VANETs based on the predictable bus route. In this work, we embark a study on information services in Bus-VANETs, where bus information is provided via the hybrid of infrastructure-to-vehicle...
The IEEE 802.11p standard drafted to support wireless access in vehicular environments (WAVE) or vehicular ad hoc network (VANET) which uses Enhanced Distributed Channel Access (EDCA) mechanism for the contention-based prioritized Quality of Service (QoS) at the MAC layer. The EDCA mechanism defines four access categories (ACs). Each AC queue works as an independent DCF station (STA) with Enhanced...
Detecting malicious and selfish nodes is an important task in Vehicular Adhoc NETworks (VANETs). Various proposals adopted trust management as an alternative solution for it is less costly in terms of computation delay and mobility adaptation, compared to the cryptography-based solutions. However, the existing solutions assume that in general the attackers have always a dishonest behavior that persists...
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.