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Vehicular communication systems

About: Vehicular communication systems is a research topic. Over the lifetime, 2532 publications have been published within this topic receiving 64775 citations. The topic is also known as: V2V & vehicle-to-vehicle.


Papers
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Journal ArticleDOI
TL;DR: This work proposes a new V2V relaying scheme called tall vehicle relaying (TVR) that takes advantage of better channel characteristics provided by tall vehicles and investigates TVR's system-level performance through a combination of link-level experiments and system- level simulations and shows that it outperforms existing techniques.
Abstract: Vehicle-to-Vehicle (V2V) communication is a core technology for enabling safety and non-safety applications in next generation intelligent transportation systems. Due to relatively low heights of the antennas, V2V communication is often influenced by topographic features, man-made structures, and other vehicles located between the communicating vehicles. On highways, it was shown experimentally that vehicles can obstruct the line of sight (LOS) communication up to 50 percent of the time; furthermore, a single obstructing vehicle can reduce the power at the receiver by more than 20 dB. Based on both experimental measurements and simulations performed using a validated channel model, we show that the elevated position of antennas on tall vehicles improves communication performance. Tall vehicles can significantly increase the effective communication range, with an improvement of up to 50 percent in certain scenarios. Using these findings, we propose a new V2V relaying scheme called tall vehicle relaying (TVR) that takes advantage of better channel characteristics provided by tall vehicles. TVR distinguishes between tall and short vehicles and, where appropriate, chooses tall vehicles as next hop relays. We investigate TVR’s system-level performance through a combination of link-level experiments and system-level simulations and show that it outperforms existing techniques.

58 citations

Proceedings ArticleDOI
08 Oct 2007
TL;DR: An extensive measurement campaign evaluating the performance of IEEE 802.11 in different vehicular communication scenarios: vehicle-to-vehicle (V2V) and infrastructure- to-vehicles (I2V).
Abstract: A key component of intelligent transportation systems (ITS) is the provision of adequate network infrastructure to support vehicular communication. In this paper we present the results of an extensive measurement campaign evaluating the performance of IEEE 802.11 in different vehicular communication scenarios: vehicle-to-vehicle (V2V) and infrastructure- to-vehicle (I2V). We concentrate our evaluation on multi-hop communication in these two scenarios. We found that distance and line of sight communication are the two main factors affecting the network communication. The experimental results confirm also the feasibility of using ad hoc networks to extend the transmission range of the infrastructure and the connection time for cars in motion.

58 citations

Proceedings ArticleDOI
01 Oct 2006
TL;DR: Preliminary channel fading statistical analysis of empirical measurement data from devices compatible with the emerging dedicated short range communications (DSRC) standard uses the Nakagami distribution to analyze the received signal strength from empirical measurement, and characterize the fading statistics as a function of distance for vehicular operating environment.
Abstract: Vehicle-to-vehicle communication research has gained tremendous interest in recent years due to its importance in facilitating future active safety and telematics applications. However, with limited literature available, there is lack of understanding for modeling mobile-to-mobile channels in vehicular environments. In this paper, we conduct preliminary channel fading statistical analysis of empirical measurement data from devices compatible with the emerging dedicated short range communications (DSRC) standard. In particular, we use the Nakagami distribution to analyze the received signal strength (i.e., RSSI) from empirical measurement, and characterize the fading statistics as a function of distance for vehicular operating environment. Our analysis reveals that fading can be approximated by Rician distribution within 100 m while it seems to follow Rayleigh distribution beyond 100 m. The outcome of the study could be used for vehicular network simulation.

58 citations

Journal ArticleDOI
01 Feb 2016
TL;DR: This paper proposes and evaluates INTERN, a new control protocol that integrates two congestion and awareness control processes and demonstrates that INTERN is able to satisfy the applications' requirements of all vehicles, while effectively controlling the channel load.
Abstract: Cooperative vehicular networks require the exchange of positioning and basic status information between neighboring nodes to support vehicular applications. The exchange of information is based on the periodic transmission/reception of 1-hop broadcast messages on the so called control channel. The dynamic adaptation of the transmission parameters when broadcasting such messages will be key for the reliable and efficient operation of vehicular networks. To this aim, vehicular networks utilize congestion control protocols to control the channel load, typically through the adaptation of the transmission parameters based on certain channel load metrics. Awareness control protocols are also required to adequately support cooperative vehicular applications. These protocols typically adapt the transmission parameters of periodic broadcast messages to ensure each vehicle's capacity to detect, and possibly communicate, with the relevant vehicles and infrastructure nodes present in its local neighborhood. To date, congestion and awareness control protocols have been normally designed and evaluated separately, although both will be required for the reliable and efficient operation of vehicular networks. In this context, this paper proposes and evaluates INTERN, a new control protocol that integrates two congestion and awareness control processes. The simulation results obtained for three different scenarios demonstrate that INTERN is able to satisfy the applications' requirements of all vehicles, while effectively controlling the channel load. The results obtained highlight the challenges ahead with emerging automated vehicles.

58 citations

Journal ArticleDOI
TL;DR: The simulation results showed that the proposed V2R2 algorithm can effectively find better paths with less travel time than the shortest path, and it can bypass void areas when collecting real-time traffic information.
Abstract: With advances in wireless communications and global position system-enabled devices (such as cellular phones, PDAs and car PCs), vehicle route guidance systems gradually become indispensable equipments for more and more automobile drivers because of its great convenience. Conventional route guidance systems are designed to direct a vehicle along the shortest path from the origin to the destination. However, usually, the shortest path does not result in the smallest travel time because of the dynamic traffic conditions on roadways. Therefore the state-of-the-art route guidance systems incorporate real-time traffic information to find better paths. There are two types of approaches to collecting real-time traffic information: infrastructure-based approach and infrastructure-free approach. The authors adopt infrastructure-free approach to develop a real-time route guidance algorithm, called V2R2 (Vehicle-to-Vehicle Real-time Routing). Our simulation results showed that V2R2 algorithm can effectively find better paths with less travel time than the shortest path. In addition, it can bypass void areas (i.e. the areas containing empty roads) when collecting real-time traffic information. The simulation results validate the efficiency and robustness of the proposed V2R2 algorithm.

57 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202323
202266
202150
202068
201975
201886