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.

A Scalable Mobile Multi-Node Channel Sounder

Abstract: The advantages of measuring multiple wireless links simultaneously has been gaining attention due to the growing complexity of wireless communication systems. Analyzing vehicular communication systems presents a particular challenge due to their rapid time-varying nature. Therefore multi-node channel sounding is crucial for such endeavors. In this paper, we present the architecture and practical implementation of a scalable mobile multi-node channel sounder, optimized for use in vehicular scenarios. We perform a measurement campaign with three moving nodes, which includes a line of sight (LoS) connection on two links and non LoS(NLoS) conditions on the third link. We present the results on the obtained channel delay and Doppler characteristics, followed by the assessment of the degree of correlation of the analyzed channels and time-variant channel rates, hence investigating the suitability of the channel’s physical attributes for relaying. The results show low cross-correlation between the transfer functions of the direct and the relaying link, while a higher rate is calculated for the relaying link.

Direct vehicle to vehicle communication network procedure for traffic, route and incident data receives or updates confidence information and tests it for further use

Abstract: A direct vehicle (F1-3) to vehicle communication network procedure receives or updates confidence information contained separately or within the communication signal and tests it for further use and distribution within the network Independent claims are included for equipment using the procedure

A Data Traffic Steering Algorithm for IEEE 802.11p/LTE Hybrid Vehicular Networks

Abstract: Reliable vehicular communication is considered an important precondition for future intelligent transportation systems (ITSs). Recently, a combination of ad-hoc direct communication and infrastructure based cellular networks are considered to enable seamless connectivity and sufficient Quality of Service (QoS) for all types of vehicular applications. Within this paper a novel algorithm to enable data traffic steering between ad-hoc IEEE 802.11p based dedicated short range communication and LTE for Vehicle-to-X (V2X) communication is presented. Based on the system-level evaluation of cell loads and radio channel congestion the network based performance of the proposed algorithm is analyzed and compared to the conservative approach of using exclusively IEEE 802.11p for message dissemination. First simulation results in a realistic urban intersection scenario show significant improvement of the quality of service.

On the security of warning message dissemination in vehicular Ad hoc networks

Abstract: Information security is an important issue in vehicular networks as the accuracy and integrity of information is a prerequisite to the satisfactory performance of virtually all vehicular network applications. We study the information security of a vehicular Ad hoc network whose message could be tampered by malicious vehicles. An analytical framework is developed to analyze the process of message dissemination in a vehicular network with malicious vehicles randomly distributed in the network. The probability that a destination vehicle at a fixed distance can receive the message correctly from the source vehicle is obtained. Simulations are conducted to validate the accuracy of the theoretical analysis. Our results demonstrate the impact of network topology and the distribution of malicious vehicles on the correct delivery of a message in vehicular Ad hoc networks, and provides insight on the design of security mechanisms to improve the security of message dissemination in vehicular networks.