Strategic and Tactical Guidance for the Connected and Autonomous Vehicle Future

Total Page:16

File Type:pdf, Size:1020Kb

Strategic and Tactical Guidance for the Connected and Autonomous Vehicle Future JOINT TRANSPORTATION RESEARCH PROGRAM INDIANA DEPARTMENT OF TRANSPORTATION AND PURDUE UNIVERSITY Strategic and Tactical Guidance for the Connected and Autonomous Vehicle Future Satish Ukkusuri, Fasil Sagir, Nishtha Mahajan, Benjamin Bowman, Salil Sharma SPR-4123• Report Number: FHWA/IN/JTRP-2019/02 • DOI: 10.5703/1288284316879 RECOMMENDED CITATION Ukkusuri, S., Sagir, F., Mahajan, N., Bowman, B., & Sharma, S. (2019). Strategic and tactical guidance for the connected and autonomous vehicle future (Joint Transportation Research Program Publication No. FHWA/IN/JTRP-2019/02). West Lafayette, IN: Purdue University. https://doi.org/10.5703/1288284316879 AUTHORS Satish Ukkusuri, PhD Professor of Civil Engineering Lyles School of Civil Engineering Purdue University (765) 494-2296 [email protected] Corresponding Author Fasil Sagir, Graduate Research Assistant Nishtha Mahajan, Graduate Research Assistant Benjamin Bowman, Undergraduate Research Assistant Salil Sharma, Graduate Research Assistant Lyles School of Civil Engineering Purdue University JOINT TRANSPORTATION RESEARCH PROGRAM The Joint Transportation Research Program serves as a vehicle for INDOT collaboration with higher education in- stitutions and industry in Indiana to facilitate innovation that results in continuous improvement in the planning, https://engineering.purdue.edu/JTRP/index_html design, construction, operation, management and economic efficiency of the Indiana transportation infrastructure. Published reports of the Joint Transportation Research Program are available at http://docs.lib.purdue.edu/jtrp/. NOTICE - The contents of this report reflect the views of the authors, who are responsible for the facts and the accuracy of the- tiondata orpresented regulation. herein. The contents do not necessarily reflect the official views and policies of the Indiana Depart ment of Transportation or the Federal Highway Administration. The report does not constitute a standard, specifica TECHNICAL REPORT DOCUMENTATION PAGE 1. Report No. 2. Government Accession No. 3. Recipient’s Catalog No. FHWA/IN/JTRP-2019/02 4. Title and Subtitle 5. Report Date Strategic and Tactical Guidance for the Connected and Autonomous Vehicle Future January 2019 6. Performing Organization Code 7. Author(s) 8. Performing Organization Report No. Satish Ukkusuri, Fasil Sagir, Nishtha Mahajan, Benjamin Bowman, Salil Sharma FHWA/IN/JTRP-2019/02 9. Performing Organization Name and Address 10. Work Unit No. Joint Transportation Research Program (SPR) Hall for Discovery and Learning Research (DLR), Suite 204 11. Contract or Grant No. 207 S. Martin Jischke Drive SPR-4123 West Lafayette, IN 47907 12. Sponsoring Agency Name and Address 13. Type of Report and Period Covered Indiana Department of Transportation Final Report State Office Building 14. Sponsoring Agency Code 100 North Senate Avenue Indianapolis, IN 46204 15. Supplementary Notes Conducted in cooperation with the U.S. Department of Transportation, Federal Highway Administration. 16. Abstract Autonomous vehicle (AV) and connected vehicle (CV) technologies are rapidly maturing and the timeline for their wider deployment is currently uncertain. These technologies are expected to have a number of significant societal benefits: traffic safety, improved mobility, improved road efficiency, reduced cost of congestion, reduced energy use, and reduced fuel emissions. State and local transportation agencies need to understand what this means for them and what they need to do now and in the next few years to prepare for the AV/CV future. In this context, the objectives of this research are as follows: 1. Synthesize the existing state of practice and how other state agencies are addressing the pending transition to AV/CV environment 2. Estimate the impacts of AV/CV environment within the context of (a) traffic operations—impact of headway distribution and traffic signal coordination; (b) traffic control devices; (c) roadway safety in terms of intersection crashes 3. Provide a strategic roadmap for INDOT in preparing for and responding to potential issues This research is divided into two parts. The first part is a synthesis study of existing state of practice in the AV/CV context by conducting an extensive literature review and interviews with other transportation agencies. Based on this, we develop a roadmap for INDOT and similar agencies clearly delineating how they should invest in AV/CV technologies in the short, medium, and long term. The second part assesses the impacts of AV/CVs on mobility and safety via modeling in microsimulation software Vissim. 17. Key Words 18. Distribution Statement autonomous vehicles, connected vehicles, transportation authorities, No restrictions. This document is available through the impact assessment, microsimulation National Technical Information Service, Springfield, VA 22161. 19. Security Classif. (of this report) 20. Security Classif. (of this page) 21. No. of Pages 22. Price Unclassified Unclassified 87 Form DOT F 1700.7 (8-72) Reproduction of completed page authorized EXECUTIVE SUMMARY N From a traffic volume analysis of the I-70 and I-465 freeway interchange with full saturation of different SAE levels, we STRATEGIC AND TACTICAL GUIDANCE FOR observed a significant increase in volume throughput (33% for THE CONNECTED AND AUTONOMOUS SAE 1 and 150% for SAE 5), indicating significant increases VEHICLE FUTURE in road capacity. N Conflict analysis of AVs indicates a decrease in the number of conflicts based on time to collision (30% for SAE 1 and Introduction 90% for SAE 5), implying an increase in safety. N We observed that benefits of intentional platooning with Autonomous vehicle (AV) and connected vehicle (CV) techno- cooperative adaptive cruise control (CACC)–equipped logies are rapidly maturing, but the timeline for their wider vehicles only materialize with higher percentage composition deployment is currently uncertain. State and local transportation of CVs and higher flow rates. This may warrant introducing agencies need to understand what this means for them and dedicated lanes for platoon formation when CACC penetra- consider what they need to do now and in the next few years to tion is low and/or flow rate is low. prepare for the AV/CV future. N We observed that the most common platoon size is 2, but The objectives of this research are to do the following: platoon sizes as large as 13 were also observed for 90% penetration and above with ad-hoc platoon formation 1. Synthesize the existing state of practice for AV and CV technique at a flow of 800 veh/h/lane. This indicates the vehicles and analyze how other state agencies are addressing need for modifications in present traffic management the pending transition to an AV/CV environment. techniques to allow for smooth movement of large groups 2. Estimate the impacts of an AV/CV environment on traffic of vehicles moving together. operations, including headway distribution and traffic signal coordination, traffic control devices, and intersection crashes. 3. Provide a strategic roadmap for INDOT to prepare for and respond to potential issues. Implementation Based on this synthesis study, we prepared a roadmap for INDOT divided into short-term, medium-term, and long-term Findings objectives to incorporate AV/CVs on Indiana’s roadways. Important considerations that to take into account when investing N It is imperative for INDOT to join pooled fund studies and in an AV/CV future were also listed. the smart coalition. In addition, INDOT should prioritize To understand the impacts of AV/CV on mobility and safety, the preparation of its infrastructure networks for AV/CV we developed microsimulation software—VISSIM-based simula- technology by installing clear lane markings and DSRC tion models—that can be further employed to understand the radios on traffic signals and ensuring the standardization of following: road design and signage. We also recommend testing both direct short-range communications (DSRC) and fifth- N Impacts of AV-only lanes for trucks and cars generation wireless (5G) on a single corridor to understand N Impacts on mobility and safety due to a mix of AV classes the pros and cons of both. (cars and trucks) N Based on AV modeling in VISSIM, we saw an increase in N Impacts of autonomous intersections average vehicle speeds near merging sections (at least 1.2%) N Assessment of surrogate safety measures for AVs with percentages as low as 20% of SAE 1 and above. N Mobility and safety impacts of truck only platooning N For SAE 2 onward, we observed a decrease in the tendency N Impacts of dedicated lanes for platoons of AVs to deviate from the center of the lane (50% for SAE 2 N Assessment of CV performance with SPaT messages and 87% for SAE 4), which indicates that lane widths can be decreased in an AV-only traffic scenario. We also developed a VISSIM-based microsimulation frame- N We found that outside operational design domain (ODD) con- work to simulate connectivity and identify the different features ditions (such as unclear pavement markings) significantly affect in traditional versus CV-based signal control. Any algorithm of mobility with SAE Level 4 and saw a 50% drop in average interest to INDOT can be fully integrated and tested in a future speed with SAE 4 compared to a fully autonomous SAE 5. project using this framework. CONTENTS 1. INTRODUCTION .............................................................. 1 1.1 Background Information........................................................ 1 1.2 Scope of This Study ..........................................................
Recommended publications
  • A Survey of Autonomous Driving: Common Practices and Emerging Technologies
    Accepted March 22, 2020 Digital Object Identifier 10.1109/ACCESS.2020.2983149 A Survey of Autonomous Driving: Common Practices and Emerging Technologies EKIM YURTSEVER1, (Member, IEEE), JACOB LAMBERT 1, ALEXANDER CARBALLO 1, (Member, IEEE), AND KAZUYA TAKEDA 1, 2, (Senior Member, IEEE) 1Nagoya University, Furo-cho, Nagoya, 464-8603, Japan 2Tier4 Inc. Nagoya, Japan Corresponding author: Ekim Yurtsever (e-mail: [email protected]). ABSTRACT Automated driving systems (ADSs) promise a safe, comfortable and efficient driving experience. However, fatalities involving vehicles equipped with ADSs are on the rise. The full potential of ADSs cannot be realized unless the robustness of state-of-the-art is improved further. This paper discusses unsolved problems and surveys the technical aspect of automated driving. Studies regarding present challenges, high- level system architectures, emerging methodologies and core functions including localization, mapping, perception, planning, and human machine interfaces, were thoroughly reviewed. Furthermore, many state- of-the-art algorithms were implemented and compared on our own platform in a real-world driving setting. The paper concludes with an overview of available datasets and tools for ADS development. INDEX TERMS Autonomous Vehicles, Control, Robotics, Automation, Intelligent Vehicles, Intelligent Transportation Systems I. INTRODUCTION necessary here. CCORDING to a recent technical report by the Eureka Project PROMETHEUS [11] was carried out in A National Highway Traffic Safety Administration Europe between 1987-1995, and it was one of the earliest (NHTSA), 94% of road accidents are caused by human major automated driving studies. The project led to the errors [1]. Against this backdrop, Automated Driving Sys- development of VITA II by Daimler-Benz, which succeeded tems (ADSs) are being developed with the promise of in automatically driving on highways [12].
    [Show full text]
  • A Survey of Autonomous Vehicles: Enabling Communication Technologies and Challenges
    sensors Review A Survey of Autonomous Vehicles: Enabling Communication Technologies and Challenges M. Nadeem Ahangar 1, Qasim Z. Ahmed 1,*, Fahd A. Khan 2 and Maryam Hafeez 1 1 School of Computing and Engineering, University of Huddersfield, Huddersfield HD1 3DH, UK; [email protected] (M.N.A.); [email protected] (M.H.) 2 School of Electrical Engineering and Computer Science, National University of Sciences and Technology, Islamabad 44000, Pakistan; [email protected] * Correspondence: [email protected] Abstract: The Department of Transport in the United Kingdom recorded 25,080 motor vehicle fatali- ties in 2019. This situation stresses the need for an intelligent transport system (ITS) that improves road safety and security by avoiding human errors with the use of autonomous vehicles (AVs). There- fore, this survey discusses the current development of two main components of an ITS: (1) gathering of AVs surrounding data using sensors; and (2) enabling vehicular communication technologies. First, the paper discusses various sensors and their role in AVs. Then, various communication tech- nologies for AVs to facilitate vehicle to everything (V2X) communication are discussed. Based on the transmission range, these technologies are grouped into three main categories: long-range, medium- range and short-range. The short-range group presents the development of Bluetooth, ZigBee and ultra-wide band communication for AVs. The medium-range examines the properties of dedicated short-range communications (DSRC). Finally, the long-range group presents the cellular-vehicle to everything (C-V2X) and 5G-new radio (5G-NR). An important characteristic which differentiates each category and its suitable application is latency.
    [Show full text]
  • From Vehicular Ad-Hoc Networks to Internet of Vehicles
    From Vehicular Ad-hoc Networks to Internet of Vehicles Eugen Borcoci University Politehnica Bucharest Electronics, Telecommunications and Information Technology Faculty ( ETTI) [email protected] NexComm 2017 Conference, April 23-27, Venice Slide 1 From Vehicular Ad-hoc Networks to Internet of Vehicles Acknowledgement This overview is compiled and structured by the author, based on public documents, like conferences material, studies, research papers, standards, projects, overviews, etc. (see specific references in the text and Reference list). Given the extension of the topics, this presentation is limited to a high level overview only, being mainly focused on architectural aspects. NexComm 2017 Conference, April 23-27, Venice Slide 2 From Vehicular Ad-hoc Networks to Internet of Vehicles Motivation of this talk The traditional Intelligent Transport System (ITS) has significantly evolved, including vehicular communication Main communications: V2V, V2R, V2I Vehicular ad-hoc Networks (VANET) VANET – is an important part of the ITS VANET (special class of Mobile ad-hoc Network - MANET ) has both technical and business-related limitations still - not very large scale deployment in the world Recent approach: IoV – significant extension of the VANET capabilities global network of vehicles – enabled by Wireless Access Technologies (WAT) involving Internet and including heterogeneous access networks IoV – special case of Internet of Things (IoT) IoV Target domains: vehicles driving and safety (basic function – in VANET) and additionally: • urban traffic management, automobile production • repair and vehicle insurance, road infrastructure construction and repair, logistics and transportation, etc. NexComm 2017 Conference, April 23-27, Venice Slide 3 CONTENTS 1. Introduction 2. Vehicular networks - short overview 3. IoV objectives, use cases and challenges 4.
    [Show full text]
  • Deep Learning Based Vehicular Mobility Models for Intelligent Transportation Systems Jian Zhang
    Deep Learning based Vehicular Mobility Models for Intelligent Transportation Systems Jian Zhang To cite this version: Jian Zhang. Deep Learning based Vehicular Mobility Models for Intelligent Transportation Systems. Automatic Control Engineering. Ecole Centrale de Lille, 2018. English. NNT : 2018ECLI0015. tel-02136219 HAL Id: tel-02136219 https://tel.archives-ouvertes.fr/tel-02136219 Submitted on 21 May 2019 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. No d’ordre : 3 6 7 CENTRALE LILLE THÈSE présentée en vue d’obtenir le grade de DOCTEUR Spécialité : Automatique, génie informatique, traitement du signal et des images par ZHANG Jian Master of Engineering of Beijing Jiao Tong University (BJTU) Doctorat délivré par Centrale Lille Titre de la thèse : Modèles de Mobilité de Véhicules par Apprentissage Profond dans les Systèmes de Transport Intelligents Soutenue le 7 décembre 2018 devant le jury : M. Pierre BORNE École Centrale de Lille Président M. Ismael LOPEZ-JUAREZ Centre de Recherche CINVESTAV, Mexique Rapporteur Mme. Shaoping WANG Beihang University, Chine Rapporteur M. Alejandro CASTILLO ATOCHE Universidad Autónoma de Yucatán, Mexique Examinateur M. Abdelkader EL KAMEL École Centrale de Lille Directeur de Thèse M. Gaston LEFRANC Pontificia Universidad Católica de Valparaíso, Chili Examinateur Mme.
    [Show full text]
  • Enabling the Vehicle Economy Using a Blockchain-Based Value Transaction Layer Protocol for Vehicular Ad-Hoc Networks - Research Paper - Version 1.0.1 August 7, 2018
    Enabling the Vehicle Economy Using a Blockchain-Based Value Transaction Layer Protocol for Vehicular Ad-Hoc Networks - Research Paper - Version 1.0.1 August 7, 2018 Benjamin Leiding and William V. Vorobev Chorus Mobility Email: [email protected] Abstract. The next generation of tightly interconnected vehicles offers a variety of new technological as well as business opportunities. Vehi- cles form so called vehicular ad-hoc networks (VANETs) in order to en- able vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), vehicle-to- human (V2H), or in general vehicle-to-everything (V2X) communication and interaction. A variety of manufacturers started implementing spe- cific use cases that are limited to their own products. However, a default interaction standard for this new economy is still missing. Chorus Mo- bility presents a blockchain-based system that enables a manufacturer agnostic platform solution that allows VANET participants to enact and transact any kind of services and goods. This whitepaper fills the gap in the state of the art by introducing a blockchain-based transaction and interaction layer that enables our V2X platform for goods and services required to kick-start the upcoming V2X economy. We present the ad- vantages of the system, outline the requirements and goals, as well as the architecture of the Chorus V2X platform and eco-system. In addi- tion, we present a prototype that demonstrates how our system helps mitigating traffic congestions and at the same time provides a mean to car insurance companies to incentivize their customers to practice good driving behavior. Keywords: Blockchain, Autonomous Vehicles, V2X Communication, Chorus Mobility, Self-Driving Cars, VANET, Smart Contract, Transportation-as-a-Service, TaaS 1 Introduction Despite steadily growing public transport networks and systems, especially in most first world countries, cars are still the default standard for urban trans- portation.
    [Show full text]
  • Internet of Vehicles and Connected Smart Vehicles Communication System Towards Autonomous Driving
    Internet of Vehicles and Connected Smart Vehicles Communication System Towards Autonomous Driving Amal Hbaieb ( [email protected] ) Universite de Technologie de Troyes Samiha AYED Université de Technologie de Troyes: Universite de Technologie de Troyes Lamia CHAARI Centre de Recherche en Numerique de Sfax Research Article Keywords: Vehicular network, IoV, VANET, Gateway, Connected smart vehicles, Autonomous driving Posted Date: June 3rd, 2021 DOI: https://doi.org/10.21203/rs.3.rs-493419/v1 License: This work is licensed under a Creative Commons Attribution 4.0 International License. Read Full License Noname manuscript No. (will be inserted by the editor) Internet of Vehicles and Connected Smart Vehicles Communication System Towards Autonomous Driving Amal Hbaieb · Samiha Ayed · Lamia Chaari the date of receipt and acceptance should be inserted later Abstract Internet of Vehicles (IoV) is one of the attractive solutions that revolutionized automotive services. IoV is the key concept toward smart and autonomous cars. Providing different wireless connectivity’s for vehicles per- mits the communication inside and outside the vehicle. These connectivities allow the vehicle to interact with other vehicles and with its environment. Autonomous driving is an innovative automotive service that will be enabled by the technology advancement related to IoV and connected cars. Big data technology has a significant impact on the development of autonomous driving and IOV concept as it refers to a huge interactive networks of information. In this paper, we focus on wireless technologies and the communication system to provide Vehicle-to-Vehicle (V2V), Vehicle-to-Infrastructure (V2I) or Vehicle- to-Road (V2R), Vehicle-to-Sensor (V2S), Vehicle-to-Human (V2H), Vehicle- to-Cellular (V2C), Vehicle-to-Grid (V2G), and Vehicle-to-Internet (V2I) con- nectivities.
    [Show full text]
  • Advances in Vehicular Ad-Hoc Networks (Vanets): Challenges and Road-Map for Future Development
    Advances in Vehicular Ad-Hoc Networks (VANETs): Challenges and Road-map for Future Development Elias C. Eze, Sijing Zhang, Enjie Liu, Joy C. Eze Centre for Wireless Research, Institute for Research in Applicable Computing (IRAC), Department of Computer Science and Technology, University of Bedfordshire, Luton, LU1 3JU, England {elias.eze, joy.eze1}@study.beds.ac.uk, {sijing.zhang, enjie.liu}@beds.ac.uk Abstract: Recent advances in wireless communication technologies and auto-mobile industry have triggered a significant research interest in the field of VANETs over the past few years. Vehicular Network consists of vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communications supported by wireless access technologies such as IEEE 802.11p. This innovation in wireless communication has been envisaged to improve road safety and motor traffic efficiency in near future through the development of Intelligent Transport Systems (ITS). Hence, government, auto-mobile industries and academia are heavily partnering through several ongoing research projects to establish standards for VANETs. The typical set of VANET application areas, such as vehicle collision warning and traffic information dissemination have made VANET an interesting field of mobile wireless communication. This paper provides an overview on current research state, challenges, potentials of VANETs as well the ways forward to achieving the long awaited ITS. Keywords: Vehicular communication, V2V, V2I, ITS, IEEE 802.11p, WAVE, IEEE 1609. Potentials envisaged in VANETs have
    [Show full text]
  • Security of Emergent Automotive Systems: a Tutorial Introduction and Perspectives on Practice
    Survey Security of Emergent Automotive Systems: A Tutorial Introduction and Perspectives on Practice Anthony Lopez, Arnav Vaibhav Malawade, Srivalli Boddupalli and Sandip Ray and Mohammad Abdullah Al Faruque University of Florida at Gainesville University of California at Irvine be accomplished under hard real-time Editor’s note: requirements. for example, a pedestrian Emerging automotive systems are governed by various complicated detec tion algorithm must complete a hardware and software systems. Hence, security is an important issue in slew of complex activities, including the highly interconnected automotive systems. This article presents a survey of capture of sensory data, aggregation, current automotive security research. communication, analytics, image pro- —Partha Pratim Pande, Washington State University cessing, security analysis, and so on, within the time constraints to enable THE LAST FEW DECADES have seen a transfor- successful completion of the appropriate actuarial mation in automotive systems from mechanical response such as warning the driver or automatical or electromechanical systems to electronic, soft- braking. Furthermore, the complexity is anticipated ware-based systems. Modern automotive systems are to rise sharply with increasing autonomy levels in complex distributed systems involving the coordina- vehicles. For instance, a future self-driving car with tion of hundreds of electronic control units (ECUs) autonomy level 4 will include several elements not communicating through a variety of in-vehicle available in today’s (level 2) systems. The following networks and the execution of several hundred are some example elements. megabytes of software. However, they induce two • Vehicle-to-vehicle ( V2V) and vehicle-to-infra- additional constraints that result in significant design structure ( V2I) communications with a variety of complexities beyond traditional distributed systems.
    [Show full text]
  • Heterogeneous Vehicular Communications: a Comprehensive Study
    Ad Hoc Networks 75–76 (2018) 52–79 Contents lists available at ScienceDirect Ad Hoc Networks journal homepage: www.elsevier.com/locate/adhoc Survey paper Heterogeneous vehicular communications: A comprehensive study ∗ Abdennour Zekri a, , Weijia Jia a,b a Department of Computer Science and Technology , Shanghai Jiao Tong University , Shanghai , China b Centre of Data Science, University of Macau, SAR Macau, China a r t i c l e i n f o a b s t r a c t Article history: Vehicular communications have developed rapidly contributing to the success of intelligent transportation Received 27 October 2017 systems. In VANET, continuous connectivity is a huge challenge caused by the extremely dynamic network Revised 25 March 2018 topology and the highly variable number of mobile nodes. Moreover, message dissemination efficiency Accepted 26 March 2018 is a serious issue in traffic effectiveness and road safety. The heterogeneous vehicular network, which Available online 30 March 2018 integrates cellular networks with DSRC, has been suggested and attracted significant attention recently. Keywords: VANET-cellular integration offers many potential benefits, for instance, high data rates, low latency, and VANET extended communication range. Due to the heterogeneous wireless access, a seamless handover decision V2I is required to guarantee QoS of communications and to maintain continuous connectivity between the Heterogeneous wireless networks vehicles. On the other hand, VANET heterogeneous wireless networks integration will significantly help LTE autonomous cars to be functional in reality. This paper surveys and reviews some related studies in the Vertical handover literature that deals with VANET heterogeneous wireless networks communications in term of vertical Data dissemination handover, data dissemination and collection, gateway selection and other issues.
    [Show full text]
  • A Survey of Vehicle to Everything (V2X) Testing
    sensors Review A Survey of Vehicle to Everything (V2X) Testing Jian Wang 1,2,* , Yameng Shao 1,2, Yuming Ge 3 and Rundong Yu 3 1 College of Computer Science and Technology, Jilin University, Changchun 130012, China; [email protected] 2 Key Laboratory of Symbolic Computation and Knowledge Engineering of Ministry of Education, Jilin University, Changchun 130012, China 3 Technology and Standards Research Institute, China Academy of Information and Communications Technology, Bejing 100191, China; [email protected] (Y.G.); [email protected] (R.Y.) * Correspondence: [email protected]; Tel.: +86-431-85159419; Fax: +86-431-85168337 Received: 17 December 2018; Accepted: 11 January 2019; Published: 15 January 2019 Abstract: Vehicle to everything (V2X) is a new generation of information and communication technologies that connect vehicles to everything. It not only creates a more comfortable and safer transportation environment, but also has much significance for improving traffic efficiency, and reducing pollution and accident rates. At present, the technology is still in the exploratory stage, and the problems of traffic safety and information security brought about by V2X applications have not yet been fully evaluated. Prior to marketization, we must ensure the reliability and maturity of the technology, which must be rigorously tested and verified. Therefore, testing is an important part of V2X technology. This article focuses on the V2X application requirements and its challenges, the need of testing. Then we also investigate and summarize the testing methods for V2X in the communication process and describe them in detail from the architectural perspective. In addition, we have proposed an end-to-end testing system combining virtual and real environments which can undertake the test task of the full protocol stack.
    [Show full text]
  • Hybrid DES-Based Vehicular Network Simulator with Multichannel Operations Le Wang
    Hybrid DES-based Vehicular Network Simulator with Multichannel Operations Le Wang A Dissertation Submitted to the Faculty of the WORCESTER POLYTECHNIC INSTITUTE in partial fulfillment of the requirements for the Degree of Doctor of Philosophy in Electrical and Computer Engineering April 2019 APPROVED: Professor Alexander M. Wyglinski Primary Advisor Worcester Polytechnic Institute Professor Andrew Clark Committee Member Worcester Polytechnic Institute Professor Kaushik Chowdhury Committee Member Northeastern University i Abstract Vehicular Ad-hoc Network (VANET) is considered to be a viable technology for inter- vehicle communications for the purpose of improving road safety and efficiency. The En- hanced Distribution Channel Access (EDCA) mechanism and multichannel operations are introduced to ensure the Quality of Service (QoS). Therefore, it is necessary to create an accurate vehicular network simulator that guarantees the vehicular communications will work as described in the protocols. A comprehensive vehicular network simulator should consider the interaction between mobility models and network protocols. In this dissertation, a novel vehicular network simulation environment, VANET Toolbox, designed using discrete-event system (DES) is presented. The APP layer DES Module of the proposed simulator integrates vehicular mo- bility operations with message generation functions. The MAC layer DES module supports single channel and multichannel EDCA operations. The PHY layer DES module supports bit-level processing. Compared with packet-based simulator such as NS-3, the proposed PHY layer is more realistic and accurate. The EDCA scheme is evaluated and compared with the traditional Carrier-Sensing Mul- tiple Access (CSMA) scheme, with the simulations proving that data with different priorities can coexist in the same channel.
    [Show full text]
  • Survey on Routing Protocols for Vehicular Ad Hoc Networks Based on Multimetrics
    electronics Review Survey on Routing Protocols for Vehicular Ad Hoc Networks Based on Multimetrics Carolina Tripp-Barba 1,* , Aníbal Zaldívar-Colado 1 , Luis Urquiza-Aguiar 2 and José Alfonso Aguilar-Calderón 1 1 Facultad de Informática Mazatlán, Universidad Autónoma de Sinaloa, Mazatlán 82107, Mexico; [email protected] (A.Z.-C.); [email protected] (J.A.A.-C.) 2 Departamento de Electrónica, Telecomunicaciones y Redes de Información, Escuela Politécnica Nacional, Quito 170109, Ecuador; [email protected] * Correspondence: [email protected]; Tel.: +52-1-669-9811560 Received: 3 August 2019; Accepted: 9 October 2019; Published: 17 October 2019 Abstract: In the last few years, many routing protocols have been proposed for vehicular ad hoc networks (VANETs) because of their specific characteristics. Protocols that use several metrics have been shown to be the most adequate to VANETs due to their effectiveness in dealing with dynamic environment changes due to vehicle mobility. Metrics such as distance, density, link stability, speed, and position were selected by the authors for the best proposal. Several surveys of routing proposals have been generated to categorize contributions and their application scenarios, but none of them focused on multimetric approaches. In this paper, we present a review of the routing protocols based on more than one metric to select the best route in a VANET. The main objective of this research was to present the contemporary most frequently used metrics in the different proposals and their application scenarios. This review helps in the selection protocols or the creation of metrics when a new protocol is designed.This survey of multimetric VANET routing protocols employed systematic literature-review (SLR) methodology in four well-knownown databases that allowed to analyze current state-of-the-art proposals.
    [Show full text]