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2017 IEEE Vehicular Networking Conference (VNC)最新文献

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2D LOS/NLOS urban maps and LTE MIMO performance evaluation for vehicular use cases 车辆用例的2D LOS/NLOS城市地图和LTE MIMO性能评估
Pub Date : 2017-11-01 DOI: 10.1109/VNC.2017.8275607
T. Berisha, C. Mecklenbräuker
The recent developments in automotive industry are tending to satisfy the mobile users' demands for low delay and high bandwidth data to current and future cellular networks. To fulfil the needs of mobile users on mobility, the proper design of wireless communication is necessary. The design of wireless links without prior knowledge of obstructions, base station locations, and cell load is not realistic and challenging. To address this issue we implement realistic Line of Sight (LOS)/Non-Line of Sight (NLOS) urban maps and conduct field measurements in Long Term Evolution (LTE) 1800 MHz live network. The campaign is supported by knowing crucial information such as base station locations. The field measurements are carried out on-board of a commercial small vehicle which causes up to 3.9 dB penetration loss. The focus of this paper is on performance evaluation of diversity and multiplexing by Rank Indicators (RIs).
汽车工业的最新发展趋向于满足移动用户对当前和未来蜂窝网络的低延迟和高带宽数据的需求。为了满足移动用户对移动性的需求,必须对无线通信进行合理的设计。在事先不知道障碍物、基站位置和小区负载的情况下设计无线链路是不现实的,也是具有挑战性的。为了解决这个问题,我们实现了现实的视线(LOS)/非视线(NLOS)城市地图,并在长期演进(LTE) 1800 MHz实时网络中进行了现场测量。了解基站位置等关键信息为该活动提供了支持。现场测量是在一辆商用小型车辆上进行的,该车辆的穿透损失高达3.9 dB。本文的重点是利用秩指标(RIs)对分集和复用性能进行评价。
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引用次数: 4
Receiver-driven broadcast for vehicular applications 用于车载应用的接收机驱动广播
Pub Date : 2017-11-01 DOI: 10.1109/VNC.2017.8275602
Do-hyung Kim, I. Yeom, Tae-Jin Lee
Broadcasting/multicasting may be an efficient way to disseminate delay-sensitive content in vehicular networks. However, conventional broadcasting schemes have suffered from reliability issues, since they cannot go along with ACK and RTS/CTS. In this paper, we design a novel receiver-driven broadcast scheme for periodic messaging in vehicular applications, where receivers request broadcasting to their neighbors and data is broadcast as a response. Via simulation study, it is shown that the proposed scheme effectively 1) controls contention and 2) mitigates hidden node effects in broadcast communication.
广播/多播可能是在车载网络中传播延迟敏感内容的有效方法。然而,传统的广播方案存在可靠性问题,因为它们不能与ACK和RTS/CTS一起使用。在本文中,我们设计了一种新的接收器驱动的广播方案,用于车载应用中的周期性消息传递,其中接收器向其邻居请求广播并将数据作为响应广播。仿真研究表明,该方案有效地控制了广播通信中的争用,减轻了广播通信中的隐藏节点效应。
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引用次数: 1
A combined fair decentralized message-rate and data-rate congestion control for V2V communication 一种用于V2V通信的公平分散的消息速率和数据速率拥塞控制的组合
Pub Date : 2017-11-01 DOI: 10.1109/VNC.2017.8275616
C. B. Math, Hong Li, S. Groot, I. Niemegeers
Channel congestion Is one of the most critical Issues In IEEE 802.11p-based vehicular ad hoc networks as it leads to unreliability of safety applications. As a counter measure, the European Telecommunications Standard Institute (ETSI), proposes a mandatory Decentralized Congestion Control (DCC) framework to control the channel load, by tuning transmission parameters, such as message-rate or data-rate. This paper defines a novel decentralized combined message-rate and data-rate congestion control (MD-DCC) scheme, which provides a fair and effective way of message-rate and data-rate allocation among vehicles to avoid congestion and satisfy application requirements. We discuss several implementation aspects such as the selection of parameters of MD-DCC and their relation with the application requirements. Simulations studies are presented to show the performance of MD-DCC in terms of application reliability and fairness. Our results show that, for various application requirements in a synthetic highway scenario and for various vehicular densities, MD-DCC outperforms other approaches that adapt only message-rate or data-rate. We conclude that MD-DCC takes the best of both message-rate and data-rate algorithms, resulting in superior application reliability as well as a dramatic increase in the maximum supported vehicular density.
信道拥塞是基于IEEE 802.11p的车载自组织网络中最关键的问题之一,它会导致安全应用的不可靠性。作为一种应对措施,欧洲电信标准协会(ETSI)提出了一个强制性的分散拥塞控制(DCC)框架,通过调整传输参数(如消息速率或数据速率)来控制信道负载。本文提出了一种新的分散式消息速率和数据速率组合拥塞控制(MD-DCC)方案,该方案提供了一种公平有效的车辆间消息速率和数据速率分配方法,以避免拥塞并满足应用需求。讨论了MD-DCC的参数选择及其与应用需求的关系等实现方面的问题。仿真研究显示了MD-DCC在应用可靠性和公平性方面的性能。我们的研究结果表明,对于合成公路场景中的各种应用需求和各种车辆密度,MD-DCC优于仅适应消息速率或数据速率的其他方法。我们得出的结论是,MD-DCC采用了最好的消息速率和数据速率算法,从而获得了卓越的应用可靠性,并大大增加了最大支持的车辆密度。
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引用次数: 12
Vehicular blocktrees 车辆blocktrees
Pub Date : 2017-11-01 DOI: 10.1109/VNC.2017.8275634
Joshua Joy
Every day autonomous vehicles will independently generate terabytes of unverified data. In the case of an accident involving multiple stakeholders with various (dis)incentives to honestly report, the question arises how to reconstruct the accident scene with validated and authenticated data without relying on a centralized authority. In this paper, we introduce Proof of Physics (PoP), a consensus mechanism whereby environmental (sensor) data is persisted only after audit and computational agreement that the recorded event occurred. Vehicles perform permissionless (e.g., requiring no centralized authority) writes of the signatures of their recorded events and associated content. The blocktree aggregates the verified data enabling querying over validated historic events. We evaluate the blocktree security by analyzing the ability of a malicious attacker to successfully fork the vehicle blocktree. We show that the attacker's success probability approaches negligible as the number of vehicle witnesses and confirmations increases.
自动驾驶汽车每天都会独立产生数tb的未经验证的数据。在涉及多个利益相关者的事故中,有各种各样的(不)动机来诚实地报告,问题是如何在不依赖集中权威的情况下使用经过验证和认证的数据重建事故现场。在本文中,我们介绍了物理证明(PoP),这是一种共识机制,只有在审计和计算一致记录事件发生后,环境(传感器)数据才会被持久化。车辆对其记录的事件和相关内容的签名进行未经许可(例如,不需要中央授权)的写入。块树聚合经过验证的数据,从而可以对经过验证的历史事件进行查询。我们通过分析恶意攻击者成功分叉车辆区块树的能力来评估区块树的安全性。我们表明,随着车辆目击和确认数量的增加,攻击者的成功概率接近于可以忽略不计。
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引用次数: 8
Cloud-support for collaborative services in connected cars scenarios 互联汽车场景中协同服务的云支持
Pub Date : 2017-11-01 DOI: 10.1109/VNC.2017.8275630
C. Olariu, Simon McLoughlin, Gary Thompson
This paper investigates the support that cloud services and applications bring to use-cases for enhanced driving situation awareness. The focus of these services is to support the decision an automated car needs to take when the situation dictates that a hand-over to the driver or a take-over by the automated driving system is required, in the context of driving scenarios proposed in VI-DAS by experts. Collaboration is viewed from a spatio-temporal perspective and as such the paper will elaborate on which kind of communication and what kind of context awareness suit driving scenarios.
本文研究了云服务和应用程序为增强驾驶态势感知的用例带来的支持。这些服务的重点是,根据专家在VI-DAS中提出的驾驶场景,在需要将车辆交给驾驶员或由自动驾驶系统接管的情况下,支持自动驾驶汽车做出所需的决定。协作是从时空的角度来看待的,因此本文将详细阐述哪种类型的通信和哪种类型的上下文感知适合驾驶场景。
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引用次数: 1
Interface selection in hybrid V2V communications: A hierarchical approach 混合V2V通信中的接口选择:一种分层方法
Pub Date : 2017-11-01 DOI: 10.1109/VNC.2017.8275610
Takamasa Higuchi, O. Altintas
The emergence of new types of applications for connected cars is expected to increase data traffic in vehicular networks. A promising solution is to concurrently use multiple types of radios, dynamically selecting network interface(s) that are likely to achieve the highest performance (i.e., hybrid networking). In this paper, we propose an intelligent interface selection mechanism, tailored to hybrid vehicle-to-vehicle communications. We introduce a novel approach of hierarchical decision making, in which interface selection by vehicles is loosely controlled by a remote central server. The server provides vehicles with recommended interface selection strategy, which is optimized based on the statistical knowledge about road and network conditions. While the vehicles basically follow the recommended strategy, they are allowed to adjust it if they detect actual channel conditions deviating from the statistics on the server. The adjustments are carefully made based on the expected channel load information provided by the server, so that the changes of strategy do not harm the communication performance in neighboring geographical regions. Simulation results show that our solution can significantly reduce the end-to-end latency of packet delivery, compared to conventional selection mechanisms.
联网汽车的新型应用程序的出现预计将增加车辆网络的数据流量。一个很有前途的解决方案是同时使用多种类型的无线电,动态地选择可能实现最高性能的网络接口(即混合网络)。在本文中,我们提出了一种针对混合动力车对车通信的智能接口选择机制。我们引入了一种新的分层决策方法,其中车辆的接口选择由远程中央服务器松散控制。服务器为车辆提供推荐的接口选择策略,该策略基于道路和网络状况的统计知识进行优化。虽然车辆基本上遵循建议的策略,但如果它们检测到实际通道状况偏离服务器上的统计数据,它们可以调整策略。根据服务器提供的预期信道负载信息仔细地进行调整,使策略的变化不会损害相邻地理区域的通信性能。仿真结果表明,与传统的选择机制相比,我们的方案可以显著降低数据包传输的端到端延迟。
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引用次数: 8
Vehicular data offloading for resource-limited delay tolerant networks 资源有限的容延迟网络的车载数据卸载
Pub Date : 2017-11-01 DOI: 10.1109/VNC.2017.8275613
E. Bentley, J. Suprenant, S. Reichhart
With the emergence of big data and the tremendous increase in traffic loads that accompanies it, there is a resurgence in the reliance on “SneakerNet” where data is stored on some sort of storage drive at the source location and the storage drive is physically taken to the destination point, rather than transmitting the data over a network. Validation experiments in a resource-limited, RF-challenged environment were completed to demonstrate the gains that can be achieved when the file size to be transferred is large enough to make it advantageous to offload traffic to a close-by vehicle and physically moving the data to the destination.
随着大数据的出现和随之而来的流量负载的巨大增长,对“SneakerNet”的依赖再次抬头,即数据存储在源位置的某种存储驱动器上,然后物理地将存储驱动器带到目的地,而不是通过网络传输数据。在资源有限、射频受限的环境中完成了验证实验,以证明当要传输的文件大小足够大,从而有利于将流量卸载到附近的车辆并将数据物理移动到目的地时,可以获得的收益。
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引用次数: 3
Privacy-enhanced capabilities for VANETs using direct anonymous attestation 使用直接匿名认证的vanet隐私增强功能
Pub Date : 2017-11-01 DOI: 10.1109/VNC.2017.8275615
Jorden Whitefield, Liqun Chen, Thanassis Giannetsos, Steve A. Schneider, H. Treharne
In this paper, we propose a novel secure and privacy-preserving solution for V2X systems leveraging widely accepted trusted computing technologies. Our approach systematically addresses all key aspects, i.e., security, privacy and accountability (revocation). By reflecting on state-of-the-art pseudonym architectures, we identify their limitations focusing on pseudonym reusage policies and revocation mechanisms. We propose the use of Direct Anonymous Attestation (DAA) algorithms to enhance existing V2X security architectures. The novelty of our proposed solution is its decentralized approach in shifting trust from the infrastructure to vehicles. Applying DAA in V2X enables enhanced privacy protection than is possible in current architectures through user-controlled linkability. The paper presents the incorporation of DAA algorithms within V2X together with rigorous security and privacy arguments.
在本文中,我们提出了一个新的安全和隐私保护的解决方案,为V2X系统利用广泛接受的可信计算技术。我们的方法系统地解决了所有关键方面,即安全、隐私和问责制(撤销)。通过反思最先进的假名架构,我们确定了它们在假名重用策略和撤销机制方面的局限性。我们建议使用直接匿名认证(DAA)算法来增强现有的V2X安全架构。我们提出的解决方案的新颖之处在于它将信任从基础设施转移到车辆的分散方法。与当前架构相比,在V2X中应用DAA可以通过用户控制的链接性增强隐私保护。本文介绍了在V2X中结合DAA算法以及严格的安全和隐私论据。
{"title":"Privacy-enhanced capabilities for VANETs using direct anonymous attestation","authors":"Jorden Whitefield, Liqun Chen, Thanassis Giannetsos, Steve A. Schneider, H. Treharne","doi":"10.1109/VNC.2017.8275615","DOIUrl":"https://doi.org/10.1109/VNC.2017.8275615","url":null,"abstract":"In this paper, we propose a novel secure and privacy-preserving solution for V2X systems leveraging widely accepted trusted computing technologies. Our approach systematically addresses all key aspects, i.e., security, privacy and accountability (revocation). By reflecting on state-of-the-art pseudonym architectures, we identify their limitations focusing on pseudonym reusage policies and revocation mechanisms. We propose the use of Direct Anonymous Attestation (DAA) algorithms to enhance existing V2X security architectures. The novelty of our proposed solution is its decentralized approach in shifting trust from the infrastructure to vehicles. Applying DAA in V2X enables enhanced privacy protection than is possible in current architectures through user-controlled linkability. The paper presents the incorporation of DAA algorithms within V2X together with rigorous security and privacy arguments.","PeriodicalId":101592,"journal":{"name":"2017 IEEE Vehicular Networking Conference (VNC)","volume":"310 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115914334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 32
Practical driving analytics with smartphone sensors 智能手机传感器的实用驾驶分析
Pub Date : 2017-11-01 DOI: 10.1109/VNC.2017.8275595
Lei Kang, Suman Banerjee
Sensing various driving behaviors, such as accelerations, brakes, turns, and change lanes — is of great interest to many applications, e.g., understanding drive quality, detecting road conditions, and more. Many such applications rely on using smartphone placed in a vehicle to collect such data for ease of deployment and use. However, several driving analytics techniques in the recent past, including our own, make simplifying assumptions that the smartphone is stably fixed with certain orientation and the car is driving on flat roads. Our deployment experience reveals that existing approaches may cause orientation misalignment and acceleration over/under estimation due to road slopes and human interactions, which lead to significant sensing errors for driving analytics applications. In this paper, we present several innovative techniques to improve the overall accuracy and usability of smartphone sensors. First, we use machine learning techniques to detect smartphone's relative orientation changes caused by human interactions. Second, we design a slope-aware alignment algorithm to improve alignment accuracy. Third, we track the linear acceleration of the vehicle to address acceleration over/under estimation problems. Fourth, we evaluate the tradeoffs between GPS and inertial sensors, and fuse inertial sensors with GPS to improve the overall accuracy and usability. We develop a smartphone application called XSense that adopts the novel techniques to improve the overall accuracy on driving analytics. Our evaluation of XSense is conducted through measurements of more than 2,000 trips (more than 13,000 miles) from 16 drivers in the past three years, and shows that XSense improves the 75-percentile accuracy by 5x comparing with well-tuned inertial sensors in traditional approach.
感知各种驾驶行为,如加速、刹车、转弯和变道,对许多应用都很有意义,例如,理解驾驶质量、检测路况等等。许多这样的应用程序依赖于使用放置在车辆中的智能手机来收集这些数据,以便于部署和使用。然而,最近的一些驾驶分析技术,包括我们自己的,都简化了假设,即智能手机稳定地固定在一定的方向上,汽车在平坦的道路上行驶。我们的部署经验表明,由于道路坡度和人为交互,现有的方法可能会导致方向失调和加速度高估/低估,从而导致驾驶分析应用程序产生重大的传感误差。在本文中,我们提出了几种创新技术,以提高智能手机传感器的整体精度和可用性。首先,我们使用机器学习技术来检测由人类互动引起的智能手机的相对方向变化。其次,设计了坡度感知对准算法,提高了对准精度。第三,我们跟踪车辆的线性加速度,以解决加速度估计过高/不足的问题。第四,我们评估了GPS和惯性传感器之间的权衡,并将惯性传感器与GPS融合,以提高整体精度和可用性。我们开发了一款名为XSense的智能手机应用程序,该应用程序采用新技术来提高驾驶分析的整体准确性。我们对XSense的评估是通过测量16名驾驶员在过去三年中超过2000次的行程(超过13000英里)进行的,结果表明,与传统方法中调谐良好的惯性传感器相比,XSense将75个百分点的精度提高了5倍。
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引用次数: 12
Analyzing attacks on cooperative adaptive cruise control (CACC) 协作自适应巡航控制(CACC)攻击分析
Pub Date : 2017-10-16 DOI: 10.1109/VNC.2017.8275598
R. V. D. Heijden, Thomas Lukaseder, F. Kargl
Cooperative Adaptive Cruise Control (CACC) is one of the driving applications of vehicular ad-hoc networks (VANETs) and promises to bring more efficient and faster transportation through cooperative behavior between vehicles. In CACC, vehicles exchange information, which is relied on to partially automate driving; however, this reliance on cooperation requires resilience against attacks and other forms of misbehavior. In this paper, we propose a rigorous attacker model and an evaluation framework for this resilience by quantifying the attack impact, providing the necessary tools to compare controller resilience and attack effectiveness simultaneously. Although there are significant differences between the resilience of the three analyzed controllers, we show that each can be attacked effectively and easily through either jamming or data injection. Our results suggest a combination of misbehavior detection and resilient control algorithms with graceful degradation are necessary ingredients for secure and safe platoons.
协同自适应巡航控制(Cooperative Adaptive Cruise Control, CACC)是车辆自组织网络(VANETs)的一种驾驶应用,有望通过车辆之间的合作行为实现更高效、更快速的交通。在CACC中,车辆交换信息,这是部分自动驾驶的基础;然而,这种对合作的依赖需要抵御攻击和其他形式的不当行为。在本文中,我们通过量化攻击影响,提出了一个严格的攻击者模型和一个评估框架,为同时比较控制器弹性和攻击有效性提供了必要的工具。尽管所分析的三种控制器的弹性之间存在显着差异,但我们表明,每种控制器都可以通过干扰或数据注入有效且容易地进行攻击。我们的研究结果表明,错误行为检测和具有优雅退化的弹性控制算法的结合是安全和安全排的必要组成部分。
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引用次数: 70
期刊
2017 IEEE Vehicular Networking Conference (VNC)
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