Inter Vehicle Communication Systems Improvement
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Inter Vehicle Communication Systems Improvement
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Author : Najmeh Khosroshahi
language : en
Publisher: LAP Lambert Academic Publishing
Release Date : 2014-03
Inter Vehicle Communication Systems Improvement written by Najmeh Khosroshahi and has been published by LAP Lambert Academic Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-03 with categories.
The main goal of intelligent transportation systems (ITS) is to improve traffic efficiency and mobile safety. The Dedicated Short Range Communication system (DSRC) standard based inter-vehicle communications system plays a key role in ITS [1]. In October 1999, the Federal Communications Commission (FCC) allocated the frequency spectrum between 5.850 and 5.925 GHz for DSRC, which will enable vehicles to communicate with the road infrastructure, and allows for a large number of ITS applications. This provides an opportunity for automakers, government agencies, and related commercial entities to improve highway safety. However, inter-vehicle communications must operate effectively within transmit power limits and under received signal strength uctuations and Doppler spread. Conventionally, Convolutional coding was employed for forward error correction (FEC);however, in this book, we consider DSRC performance using Low Density Parity Check (LDPC) codes and Quasi-Cyclic (QC)-LDPC codes under different channel conditions. Results show that a QC-LDPC code provide an attractive trade off between performance and complexity, and should be considered as an alternative for DSRC systems.
Inter Vehicular Data Communication
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Author : Sophea Chhun
language : en
Publisher: LAP Lambert Academic Publishing
Release Date : 2010-10
Inter Vehicular Data Communication written by Sophea Chhun and has been published by LAP Lambert Academic Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-10 with categories.
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.
Properties Simulation And Applications Of Inter Vehicle Communication Systems
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Author : Hao Yang
language : en
Publisher:
Release Date : 2013
Properties Simulation And Applications Of Inter Vehicle Communication Systems written by Hao Yang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.
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.
Research Study On Inter Vehicle Communication Implementation In Malaysia
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Author : Mohd Fakhrul Anwar Alias
language : en
Publisher:
Release Date : 2010
Research Study On Inter Vehicle Communication Implementation In Malaysia written by Mohd Fakhrul Anwar Alias and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Intelligent transportation systems categories.
Vehicle-to-Vehicle (V2V) communications systems have recently drawn great attention, because they have the potential to improve convenience and safety of car traffic. Road accidents take the life of many people in the world each year, and much more people have been injuring and maiming. Statistical studies show that accidents could be avoid by 60% if drivers were informed only half a second before the accident. The objective of this report is to make an analysis of the possibility of implementing this technology in Malaysia. This research study is as guidance to develop a concept of V2V system. Applications with early deadlines are expected to require direct V2V communications, and the only standard currently supporting this is the IEEE 802.11p, included in the wireless access in vehicular environment (WAVE). The combination of WAVE and GPS is a good idea to forming collision avoidance system. The GPS system determines the location of vehicles and the WAVE system forming an ad- hoc peer-to-peer networking among the vehicles.V2V communication enable vehicle to communicate with their neighbouring vehicles even in the absence of a central base station to provide a safer and more efficient roads and to increase passenger safety. This technology can be implements in Malaysia but in order to do it some changing had to be made first to ensure the effectiveness of the technology. V2V communication should have a Doppler sensor as a device sensor that can integrates with cruise control to form adaptive cruise control. Other than that, it also need WAVE to assure a reliable communication system between vehicles. The GPS system is needs to determine exact location of car that can be use in roadways environment such as overtaking situation.
Inter Vehicle Communications
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Author : Marc Torrent-Moreno
language : en
Publisher:
Release Date : 2007
Inter Vehicle Communications written by Marc Torrent-Moreno and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Highway communications categories.
Connected Vehicle Systems
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Author : Yunpeng Wang
language : en
Publisher: CRC Press
Release Date : 2017-08-07
Connected Vehicle Systems written by Yunpeng Wang and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-08-07 with Computers categories.
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.
Vanet
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Author : Hannes Hartenstein
language : en
Publisher: John Wiley & Sons
Release Date : 2009-11-04
Vanet written by Hannes Hartenstein and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-11-04 with Technology & Engineering categories.
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
Vehicular Communication Systems
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Author : Fouad Sabry
language : en
Publisher: One Billion Knowledgeable
Release Date : 2022-10-25
Vehicular Communication Systems written by Fouad Sabry and has been published by One Billion Knowledgeable this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-10-25 with Transportation categories.
What Is Vehicular Communication Systems Computer networks known as vehicular communication systems consist of communicating nodes located in cars and roadside devices. These nodes share information with one another, including safety alerts and traffic data, as part of the network. They have the potential to be useful in reducing the occurrence of accidents and alleviating congestion. Each kind of node is a device that is intended only for use in dedicated short-range communications (DSRC). The DSRC operates in the 5.9 GHz band and has a bandwidth of 75 MHz. Its range is about 300 meters (980 ft). Intelligent transportation systems often include the development of vehicular communications as one of its components (ITS). How You Will Benefit (I) Insights, and validations about the following topics: Chapter 1: Vehicular communication systems Chapter 2: Intelligent transportation system Chapter 3: Telematics Chapter 4: Advanced driver-assistance system Chapter 5: Dedicated short-range communications Chapter 6: Cognitive radio Chapter 7: IEEE 802.11p Chapter 8: Vehicular ad hoc network Chapter 9: Wireless ad hoc network Chapter 10: Intelligent vehicular ad hoc network Chapter 11: Communications Access for Land Mobiles Chapter 12: Mobile Slotted Aloha Chapter 13: Connected car Chapter 14: Cooperative Adaptive Cruise Control Chapter 15: Bernhard Walke Chapter 16: Techniques for Verification of Broadcast Information in Vehicular Ad hoc Networks Chapter 17: Vehicle-to-everything Chapter 18: 5G Automotive Association Chapter 19: Cellular V2X Chapter 20: Petros A. Ioannou Chapter 21: Internet of vehicles (II) Answering the public top questions about vehicular communication systems. (III) Real world examples for the usage of vehicular communication systems in many fields. (IV) 17 appendices to explain, briefly, 266 emerging technologies in each industry to have 360-degree full understanding of vehicular communication systems' technologies. Who This Book Is For Professionals, undergraduate and graduate students, enthusiasts, hobbyists, and those who want to go beyond basic knowledge or information for any kind of vehicular communication systems.
Inter Vehicle Communication System Using Cognitive Radio
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Author : Faisal Riaz
language : en
Publisher: LAP Lambert Academic Publishing
Release Date : 2011-08
Inter Vehicle Communication System Using Cognitive Radio written by Faisal Riaz and has been published by LAP Lambert Academic Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-08 with categories.
A research book written after the efforts and research of one and half years, under the research group of Cognitive Radio. It is a novel approach towards safe driving.In the world many Inter vehicle communication systems are under research, but all are based on fixed Radio Access technology and suffering signal loss and load balancing problem, specially in urban and hilly areas. We have first time introduced cognitive radio as a solution for reliable Inter vehicle communication system. We have proposed a Cognitive Radio site in a vehicle to make the vehicles more smart using Multi-RAT scanning, white Space sensing, white space optimization, bandwidth shifting and bandwidth management.
Vehicular 2 X Communication
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Author : Radu Popescu-Zeletin
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-04-26
Vehicular 2 X Communication written by Radu Popescu-Zeletin and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-04-26 with Technology & Engineering categories.
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.