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The Impact Of Inter Vehicle Communication On Vehicular Traffic
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Book Synopsis The Impact of Inter-vehicle Communication on Vehicular Traffic by : Moritz Killat
Download or read book The Impact of Inter-vehicle Communication on Vehicular Traffic written by Moritz Killat and published by KIT Scientific Publishing. This book was released on 2014-10-16 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: The work addresses communication networks established over radio equipped vehicles in our everyday road traffic, so called Vehicular Ad Hoc Networks (VANETs), and discusses their impact on two major goals, namely traffic safety and traffic efficiency. For both objectives, the thesis proposes an appropriate modeling of the essential building blocks Traffic, Communication and Application and enables impact assessment studies by means of implemented simulation tools.
Book Synopsis The Impact of Inter-vehicle Communication on Vehicular Traffic by : Moritz Killat
Download or read book The Impact of Inter-vehicle Communication on Vehicular Traffic written by Moritz Killat and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Properties, Simulation, and Applications of Inter-vehicle Communication Systems by : Hao Yang
Download or read book Properties, Simulation, and Applications of Inter-vehicle Communication Systems written by Hao Yang and published by . This book was released on 2013 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: The growth of urban vehicle traffic generates serious transportation and environmental problems in most countries of the world. Intelligent transportation systems (ITS) are effective means to solve basic traffic problems, such as driving safety, road congestion, disaster supplies, emissions, etc. Inter-vehicle communication (IVC) system is one of the most important components of ITS. In recent years, the rapid development of information technologies leads a revolution in IVC, enabling IVC be a powerful multifunctional system. However, there exist numerous challenges for ITS studies. This dissertation is aimed to address three urgent and critical issues in IVC: efficiency of information exchanging among connected vehicles, simulation methods, and IVC applications. Information transmission efficiency, which can be measured by communication throughput or capacity, is a fundamental property of vehicular ad hoc networks. This dissertation theoretically analyzes communication throughputs, including broadcast and unicast communications, under discrete and continuous vehicular ad hoc networks (VANETs). We also examine influence of transmission range, interference ratio, market penetration rate of IVC-equipped vehicles, percentage of senders, and traffic waves on throughputs. Furthermore, we derive a theoretical formulation to calculate communication capacities under uniform traffic streams. And, an integer programming (IP) model is improved to explore capacities in general traffic, and a genetic algorithm is constructed to search the solutions efficiently. The second contribution of this dissertation is the development of a hybrid traffic simulation model to evaluate transportation systems incorporated with IVC technologies. As IVC-equipped vehicles are able to obtain more road information and they are controlled to pursue some objectives, they will behave differently from others, and transportation systems will become heterogeneous. This dissertation presents a hybrid traffic simulation model coupling microscopic and macroscopic models to address heterogeneity in transportation systems. In the model, equipped vehicles are regulated by a car-following model, while the other vehicles are described as continuous media with the Lighthill-Whitham-Richard (LWR) model. We analytically study the model on a single-lane road using a modified Godunov method. The hybrid model shows its potential of accurate wave propagation from individual vehicles to continuous traffic streams, and reversely; i.e., the model is capable of analyzing heterogeneous traffic. Moreover, consistency, stability and convergence of the hybrid model are carefully investigated. The model also shows the advancement of computational efficiency and control flexibility on traffic simulations. Finally, for IVC applications in environment, we propose a green driving strategy to smooth traffic flow and lower pollutant emissions and fuel consumption. In this dissertation, we study constant and dynamic green driving strategies based on inter-vehicle communications. Generally, speed limit control in successful strategies guarantee a vehicle's speed profile be smooth while still following its leader during a relative long time period. A theoretical analysis of constant strategies demonstrates that optimal smoothing effects can be achieved when a speed limit is set to be close to but not smaller than average speed of traffic. We consider a dynamic strategy in which controlled vehicles share location and speed information based on a feedback control system. The influence of market penetration rate of equipped vehicles and communication delay on the strategy is also analyzed. Besides the development of the green driving strategy, we construct a green driving APP for smartphones on the Google Android platform and design a field experiment to check the feasibility of the strategy. The results are promising and support the advancements of IVC on reducing emissions and fuel consumption.
Download or read book VANET written by Hannes Hartenstein and published by John Wiley & Sons. This book was released on 2009-11-04 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an invaluable introduction to inter-vehicular communications, demonstrating the networking and communication technologies for reducing fatalities, improving transportation efficiency, and minimising environmental impact. This book addresses the applications and technical aspects of radio-based vehicle-to-vehicle and vehicle-to-infrastructure communication that can be established by short- and medium range communication based on wireless local area network technology (primarily IEEE 802.11). It contains a coherent treatment of the important topics and technologies contributed by leading experts in the field, covering the potential applications for and their requirements on the communications system. The authors cover physical and medium access control layer issues with focus on IEEE 802.11-based systems, and show how many of the applications benefit when information is efficiently disseminated, and the techniques that provide attractive data aggregation (also includes design of the corresponding middleware). The book also considers issues such as IT-security (means and fundamental trade-off between security and privacy), current standardization activities such as IEEE 802.11p, and the IEEE 1609 standard series. Key Features: Covers the state-of-the-art in the field of vehicular inter-networks such as safety and efficiency applications, physical and medium access control layer issues, middleware, and security Shows how vehicular networks differ from other mobile networks and illustrates the idea of vehicle-to-vehicle communications with application scenarios and with current proofs of concept worldwide Addresses current standardization activities such as IEEE 802.11p and the IEEE 1609 standard series Offers a chapter on mobility models and their use for simulation of vehicular inter-networks Provides a coherent treatment of the important topics and technologies contributed by leading academic and industry experts in the field This book provides a reference for professional automotive technologists (OEMS and suppliers), professionals in the area of Intelligent Transportation Systems, and researchers attracted to the field of wireless vehicular communications. Third and fourth year undergraduate and graduate students will also find this book of interest. For additional information please visit http://www.vanetbook.com
Book Synopsis Interference in Vehicle-to-vehicle Communication Networks by : Felix Schmidt-Eisenlohr
Download or read book Interference in Vehicle-to-vehicle Communication Networks written by Felix Schmidt-Eisenlohr and published by KIT Scientific Publishing. This book was released on 2010 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: In wireless vehicular communication networks the periodic transmission of status updates by all vehicles represents a basic service primitive, in particular for safety related applications. Due to the limited communication resources the question raises how much data each node may provide such that the quality of service required by applications can still be guaranteed under realistic interference conditions. Local broadcasts capacity is introduced and analyzed to tackle this open question.
Book Synopsis Vehicular-2-X Communication by : Radu Popescu-Zeletin
Download or read book Vehicular-2-X Communication written by Radu Popescu-Zeletin and published by Springer Science & Business Media. This book was released on 2010-04-26 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Universal vehicular communication promises many improvements in terms of ac- dent avoidance and mitigation, better utilization of roads and resources such as time and fuel, and new opportunities for infotainment applications. However, before widespread acceptance, vehicular communication must meet challenges comparable to the trouble and disbelief that accompanied the introduction of traf c lights back then. The rst traf c light was installed in 1868 in London to signal railway, but only later, in 1912, was invented the rst red-green electric traf c light. And roughly 50 years after the rst traf c light, in 1920, the rst four-way traf c signal comparable to our today’s traf c lights was introduced. The introduction of traf c signals was necessary after automobiles soon became prevalent once the rst car in history, actually a wooden motorcycle, was constructed in 1885. Soon, the scene became complicated, requiring the introduction of the “right-of-way” philosophy and later on the very rst traf c light. In the same way the traf c light was a necessary mean to regulate the beginning of the automotive life and to protect drivers, passengers, as well as pedestrians and other inhabitants of the road infrastructure, vehicular communication is necessary to accommodate the further growth of traf c volume and to signi cantly reduce the number of accidents.
Book Synopsis Analysis of Inter-Vehicle Communication Using Network Simulator by : Wei Lu
Download or read book Analysis of Inter-Vehicle Communication Using Network Simulator written by Wei Lu and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inter-Vehicle Communication (IVC) could be an important component of next-generation Intelligent Transportation System (ITS). It provides wireless connectivity among traveling vehicles to exchange real-time road condition and traffic information to support safe driving and traffic management. IVC system can be considered as a special form of mobile ad-hoc network (MANET). The MANET and IVC are both hot issues for researches. However, there are few domestic literature combining the two topics. Most of them are discussed separately. Thus, the studies on architecture and protocols of mobile ad-hoc network have great value for establishing vehicular networks. Two simple IVC scenarios are implemented on NS-2. The quantitative metrics like network throughput, delay and packet-loss are used to assess the performance of MANET for IVC under different vehicular speeds, transport layer protocols and routing protocols. The results indicate that MANET can be used for IVC well. The different speeds and protocols should be chosen based on specific IVC scenarios.
Book Synopsis Connected Vehicle Systems by : Yunpeng Wang
Download or read book Connected Vehicle Systems written by Yunpeng Wang and published by CRC Press. This book was released on 2017-08-07 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Connected vehicles and intelligent vehicles have been identified as key technologies for increasing road safety and transport efficiency. This book presents and discusss the recent advances in theory and practice in connected vehicle systems. It covers emerging research that aims at dealing with the challenges in designing the essential functional components of connected vehicles. Major topics include intra- and inter-vehicle communications, mobility model of fleet and ramp merging, trace and position data analysis, security and privacy.
Book Synopsis THz Communications by : Thomas Kürner
Download or read book THz Communications written by Thomas Kürner and published by Springer Nature. This book was released on 2021-12-07 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the fundamentals of THz communications, spanning the whole range of applications, propagation and channel models, RF transceiver technology, antennas, baseband techniques, and networking interfaces. The requested data rate in wireless communications will soon reach from 100 Gbit/s up to 1 Tbps necessitating systems with ultra-high bandwidths of several 10s of GHz which are available only above 200 GHz. In the last decade, research at these frequency bands has made significant progress, enabling mature experimental demonstrations of so-called THz communications, which are thus expected to play a vital role in future wireless networks. In addition to chapters by leading experts on the theory, modeling, and implementation of THz communication technology, the book also features the latest experimental results and addresses standardization and regulatory aspects. This book will be of interest to both academic researchers and engineers in the telecommunications industry.
Book Synopsis Inter Vehicular Data Communication by : Sophea Chhun
Download or read book Inter Vehicular Data Communication written by Sophea Chhun and published by LAP Lambert Academic Publishing. This book was released on 2010-10 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Technology keeps improving and people keep requesting for safety and comfort. If we consider in transportation domain, the number of vehicles is increasing every day. Their popularity brings many problems in areas of safety and also environment. Therefore, there are many researchers working in this domain to find solutions on how they can improve safety, comfort in people s life and reduce pollution. There are many existing solutions in inter vehicle communication system and intelligent transportation system. However, there are still some areas that require improvement. This work, we focus on data management level rather than network level. Our goal is to collect all events and then aggregate them together in order to reduce data storage size, package transfer size and response time to driver s queries; and finally to control the exchange aggregated data process between vehicles. To solve these problems, we implemented an aggregation simulator by using a proposed aggregation data structure; and data that was generated by VESPA (Vehicular Event Sharing with a mobile P2P Architecture) parking simulator.
Book Synopsis Inter-Vehicle Communication at Intersections by : Thomas Mangel
Download or read book Inter-Vehicle Communication at Intersections written by Thomas Mangel and published by KIT Scientific Publishing. This book was released on 2014-07-30 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book evaluates the ability of ad-hoc and cellular communication to enable cross-traffic assistance at intersections. Potential issues like Non-Line-Of-Sight (NLOS) reception with ad-hoc and limited capacity, higher latency and costs with cellular technology are investigated in two individual evaluations. A method for efficient information delivery via cellular systems and an inter-vehicle NLOS radio propagation model are proposed. Finally, the suitability of both technologies is compared.
Book Synopsis Evaluation of Inter-vehicle Communication in Traffic Networks by : Yiting Liu
Download or read book Evaluation of Inter-vehicle Communication in Traffic Networks written by Yiting Liu and published by . This book was released on 2003 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Automotive Informatics and Communicative Systems: Principles in Vehicular Networks and Data Exchange by : Guo, Huaqun
Download or read book Automotive Informatics and Communicative Systems: Principles in Vehicular Networks and Data Exchange written by Guo, Huaqun and published by IGI Global. This book was released on 2009-04-30 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances the understanding of management methods, information technology, and their joint application in business processes.
Book Synopsis Characterizing Information Propagation Through Inter-vehicle Communication on a Simple Network of Two Parallel Roads by : Bruce Xiubin Wang
Download or read book Characterizing Information Propagation Through Inter-vehicle Communication on a Simple Network of Two Parallel Roads written by Bruce Xiubin Wang and published by . This book was released on 2010 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Inter- and Intra-Vehicle Communications by : Gilbert Held
Download or read book Inter- and Intra-Vehicle Communications written by Gilbert Held and published by CRC Press. This book was released on 2007-11-08 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: The PC revolution, the advent of PDAs, and growth in the use of wireless LANs have changed the way we live our lives. Next on the horizon is the application of new technologies that will change the way we drive our cars. De rigeur for many drivers, electronic passes and GPS systems represent the tip of the iceberg in terms of emerging applications
Book Synopsis Secure and Privacy-preserving Vehicular Communications by : Xiaodong Lin
Download or read book Secure and Privacy-preserving Vehicular Communications written by Xiaodong Lin and published by . This book was released on 2008 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: Road safety has been drawing increasing attention in the public, and has been subject to extensive efforts from both industry and academia in mitigating the impact of traffic accidents. Recent advances in wireless technology promise new approaches to facilitating road safety and traffic management, where each vehicle (or referred to as On-board unit (OBU)) is allowed to communicate with each other as well as with Roadside units (RSUs), which are located in some critical sections of the road, such as a traffic light, an intersection, and a stop sign. With the OBUs and RSUs, a self-organized network, called Vehicular Ad Hoc Network (VANET), can thus be formed. Unfortunately, VANETs have faced various security threats and privacy concerns, which would jeopardize the public safety and become the main barrier to the acceptance of such a new technology. Hence, addressing security and privacy issues is a prerequisite for a market-ready VANET. Although many studies have recently addressed a significant amount of efforts in solving the related problems, few of the studies has taken the scalability issues into consideration. When the traffic density is getting large, a vehicle may become unable to verify the authenticity of the messages sent by its neighbors in a timely manner, which may result in message loss so that public safety may be at risk. Communication overhead is another issue that has not been well addressed in previously reported studies. Many efforts have been made in recent years in achieving efficient broadcast source authentication and data integrity by using fast symmetric cryptography. However, the dynamic nature of VANETs makes it very challenging in the applicability of these symmetric cryptography-based protocols. In this research, we propose a novel Secure and Efficient RSU-aided Privacy Preservation Protocol, called SERP^3, in order to achieve efficient secure and privacy-preserving Inter-Vehicle Communications (IVCs). With the commitments of one-way key chains distributed to vehicles by RSUs, a vehicle can effectively authenticate any received message from vehicles nearby even in the presence of frequent change of its neighborship. Compared with previously reported public key infrastructure (PKI)-based packet authentication protocols for security and privacy, the proposed protocol not only retains the security and privacy preservation properties, but also has less packet loss ratio and lower communication overhead, especially when the road traffic is heavy. Therefore, the protocol solves the scalability and communication overhead issues, while maintaining acceptable packet latency. However, RSU may not exist in some situations, for example, in the early stage deployment phase of VANET, where unfortunately, SERP^3 is not suitable. Thus, we propose a complementary Efficient and Cooperative Message Validation Protocol, called ECMVP, where each vehicle probabilistically validates a certain percentage of its received messages based on its own computing capacity and then reports any invalid messages detected by it. Since the ultimate goal of designing VANET is to develop vehicle safety/non-safety related applications to improve road safety and facilitate traffic management, two vehicle applications are further proposed in the research to exploit the advantages of vehicular communications. First, a novel vehicle safety application for achieving a secure road traffic control system in VANETs is developed. The proposed application helps circumvent vehicles safely and securely through the areas in any abnormal situation, such as a car crash scene, while ensuring the security and privacy of the drivers from various threats. It not only enhances traveler safety but also minimizes capacity restrictions due to any unusual situation. Second, the dissertation investigates a novel mobile payment system for highway toll collection by way of vehicular communications, which addresses all the issues in the currently existing toll collection technologies.
Book Synopsis ICT for Transport by : Nikolas Thomopoulos
Download or read book ICT for Transport written by Nikolas Thomopoulos and published by Edward Elgar Publishing. This book was released on 2015-05-29 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: Information and Communication Technologies (ICT) are rapidly evolving and taking centre stage in everyday life in the 21st century alongside the increasing importance and value of information. This is particularly evident in the transport sector where
