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Author: Najmeh Khosroshahi
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659393983
Category :
Languages : en
Pages : 100
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Book Description
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.
Author: Najmeh Khosroshahi
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659393983
Category :
Languages : en
Pages : 100
Get Book Here
Book Description
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.
Author: Thomas Mangel
Publisher: KIT Scientific Publishing
ISBN: 3866448996
Category : Computers
Languages : en
Pages : 212
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Book Description
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.
Author: Moritz Killat
Publisher: KIT Scientific Publishing
ISBN: 3866444451
Category : Communication and traffic
Languages : en
Pages : 188
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Book Description
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.
Author: Sophea Chhun
Publisher: LAP Lambert Academic Publishing
ISBN: 9783843369176
Category :
Languages : en
Pages : 80
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Book Description
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.
Author: Marc Torrent-Moreno
Publisher:
ISBN: 9783866441750
Category : Highway communications
Languages : en
Pages : 142
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Book Description
Author: Butun, Ismail
Publisher: IGI Global
ISBN: 1799874702
Category : Computers
Languages : en
Pages : 285
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Book Description
Internet of things (IoT) is an emerging research field that is rapidly becoming an important part of our everyday lives including home automation, smart buildings, smart things, and more. This is due to cheap, efficient, and wirelessly-enabled circuit boards that are enabling the functions of remote sensing/actuating, decentralization, autonomy, and other essential functions. Moreover, with the advancements in embedded artificial intelligence, these devices are becoming more self-aware and autonomous, hence making decisions themselves. Current research is devoted to the understanding of how decision support systems are integrated into industrial IoT. Decision Support Systems and Industrial IoT in Smart Grid, Factories, and Cities presents the internet of things and its place during the technological revolution, which is taking place now to bring us a better, sustainable, automated, and safer world. This book also covers the challenges being faced such as relations and implications of IoT with existing communication and networking technologies; applications like practical use-case scenarios from the real world including smart cities, buildings, and grids; and topics such as cyber security, user privacy, data ownership, and information handling related to IoT networks. Additionally, this book focuses on the future applications, trends, and potential benefits of this new discipline. This book is essential for electrical engineers, computer engineers, researchers in IoT, security, and smart cities, along with practitioners, researchers, academicians, and students interested in all aspects of industrial IoT and its applications.
Author: Yunpeng Wang
Publisher: CRC Press
ISBN: 1351869515
Category : Computers
Languages : en
Pages : 298
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Book Description
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.
Author: Huang, Chung-Ming
Publisher: IGI Global
ISBN: 1605668419
Category : Computers
Languages : en
Pages : 438
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Book Description
"This book examines critical issues involved with telematics such as vehicular network infrastructure, vehicular network communication protocols, and vehicular services and applications"--Provided by publisher.
Author: Gilbert Held
Publisher: CRC Press
ISBN: 1420052225
Category : Computers
Languages : en
Pages : 200
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Book Description
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
Author: Mohd Fakhrul Anwar Alias
Publisher:
ISBN:
Category : Intelligent transportation systems
Languages : en
Pages : 67
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Book Description
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.
