International Workshop on VehiculAr Inter-NETworking最新文献

Field operational tests for cooperative systems: a tussle between research, standardization and deployment 协作系统的现场操作测试:研究、标准化和部署之间的角力

International Workshop on VehiculAr Inter-NETworking Pub Date : 2011-09-23 DOI: 10.1145/2030698.2030710

Andreas Festag, L. Le, Maria Goleva

{"title":"Field operational tests for cooperative systems: a tussle between research, standardization and deployment","authors":"Andreas Festag, L. Le, Maria Goleva","doi":"10.1145/2030698.2030710","DOIUrl":"https://doi.org/10.1145/2030698.2030710","url":null,"abstract":"After a decade of research and technology development, road cooperative systems based on vehicle-to-vehicle and vehicle-to-roadside infrastructure communication are currently in a trial phase. Major field operational tests (FOTs) are carried out to verify the operation of cooperative systems in real environments and assess the impact of applications on road safety, traffic efficiency as well as driver behavior and user satisfaction. Standards to achieve interoperability are developed and a potential introduction of a cooperative system is prepared. An FOT is exposed to various requirements from research, standards and deployment that are -- at least partially -- adverse to each other. We study the dependencies for the case of the DRIVE~C2X project, a pan-European FOT for cooperative system. The paper puts the technologies used in the FoT, particularly focusing on communication, into the context of research activities for cooperative systems. We show that the FOT is based on technologies for a minimal cooperative system that is ready to be introduced and sustainably deployed. Further, we identify research concepts and technologies that did not find their way into the basic cooperative system yet and discuss potential directions for future enhancement of the minimal system.","PeriodicalId":416154,"journal":{"name":"International Workshop on VehiculAr Inter-NETworking","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120914513","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: 34

Enabling vehicular visible light communication (V2LC) networks 启用车载可见光通信(V2LC)网络

International Workshop on VehiculAr Inter-NETworking Pub Date : 2011-09-23 DOI: 10.1145/2030698.2030705

Cen Liu, B. Sadeghi, E. Knightly

{"title":"Enabling vehicular visible light communication (V2LC) networks","authors":"Cen Liu, B. Sadeghi, E. Knightly","doi":"10.1145/2030698.2030705","DOIUrl":"https://doi.org/10.1145/2030698.2030705","url":null,"abstract":"Visible Light Communication (VLC) is a fast-growing technology to provide data communication using low-cost and omni-present LEDs and photodiodes. In this paper, we examine the key proper-ties in enabling vehicular VLC (V2LC) networks as follows. We first develop a custom V2LC research platform on which we expe-rimentally evaluate the feasibility of a V2LC system under working conditions in relation to link resilience to visible light noise and interference. Our experiments show that a receiver's narrow field-of-view angle makes V2LC resilient to visible light noise from sunlight and legacy lighting sources as well as to interference from active VLC transmitters. Then, by leveraging our experimental characterization as the basis of modifications to our simulator, we examine V2LC's performance in providing network services for vehicular applications. Our key findings include: (i) in dense vehicular traffic conditions (e.g., urban highway during peak hours), V2LC takes advantage of multiple available paths to reach vehicles and overcomes the effects of packet collisions; (ii) in the presence of a visible light blockage in traffic, V2LC can still have a significant number of successful transmissions by opportunistically using dynamic inter-vehicle gaps.","PeriodicalId":416154,"journal":{"name":"International Workshop on VehiculAr Inter-NETworking","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114347060","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: 154

Low-cost mitigation of privacy loss due to radiometric identification 低成本减轻辐射识别造成的隐私损失

International Workshop on VehiculAr Inter-NETworking Pub Date : 2011-09-23 DOI: 10.1145/2030698.2030704

J. Haas, Yih-Chun Hu, N. Laurenti

{"title":"Low-cost mitigation of privacy loss due to radiometric identification","authors":"J. Haas, Yih-Chun Hu, N. Laurenti","doi":"10.1145/2030698.2030704","DOIUrl":"https://doi.org/10.1145/2030698.2030704","url":null,"abstract":"Recently, there has been much interest in using radiometric identification (also known as wireless fingerprinting) for the purposes of authentication. Previous work has shown that using radiometric identification can discriminate among devices with a high degree of accuracy when simultaneously using multiple radiometric characteristics. Additionally, researchers have noted the potential for wireless fingerprinting to be used for more devious purposes, specifically that of privacy invasion or compromise. In fact, any such radiometric characteristic that is useful for authentication is useful for privacy compromise. To date, there has not been any proposal of how to mitigate such privacy loss for many of these radiometric characteristics, and specifically no such proposal for how to mitigate such privacy loss in a low-cost manner.\u0000 In this paper, we investigate some limits of an attacker's ability to compromise privacy, specifically an attacker that uses a transmitter's carrier frequency. We propose low-cost mechanisms for mitigating privacy loss for various radiometric characteristics. In our development and evaluation, we specifically consider a vehicular network (VANET) environment. We consider this environment in particular because VANETs will have the potential to leak significant, long-term information that could be used to compromise drivers' personal information such as home address, work address, and the locations of any businesses the driver frequents. While tracking a vehicle using visually observable information (e.g., license plates) to obtain personal information is possible, such means require line-of-sight, whereas radiometric identification would not. Finally, we evaluate one of our proposed mechanisms via simulation. Specifically, we evaluate our carrier frequency switching mechanism, comparing it to the theory we develop, and we show the precision with which vehicles will need to switch their physical layer identities given our parameterization for VANETs.","PeriodicalId":416154,"journal":{"name":"International Workshop on VehiculAr Inter-NETworking","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123546502","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: 2

Real-world evaluation of IEEE 802.11p for vehicular networks 车载网络IEEE 802.11p的实际评估

International Workshop on VehiculAr Inter-NETworking Pub Date : 2011-09-23 DOI: 10.1145/2030698.2030717

F. Neves, André Cardote, Ricardo Moreira, S. Sargento

引用次数: 19

Near-optimal, reliable and self-organizing hierarchical topology in VANET VANET的近最优、可靠和自组织分层拓扑

International Workshop on VehiculAr Inter-NETworking Pub Date : 2011-09-23 DOI: 10.1145/2030698.2030712

Yair Allouche, M. Segal

引用次数: 3

Towards collision-free medium access control in vehicular ad-hoc networks 车载自组织网络中无冲突介质访问控制的研究

International Workshop on VehiculAr Inter-NETworking Pub Date : 2011-09-23 DOI: 10.1145/2030698.2030714

Shu Zhang, V. Cahill

引用次数: 3

Advanced carrier sensing to resolve local channel congestion 先进的载波感知解决本地信道拥塞

International Workshop on VehiculAr Inter-NETworking Pub Date : 2011-09-23 DOI: 10.1145/2030698.2030701

R. Schmidt, A. Brakemeier, T. Leinmüller, F. Kargl, G. Schäfer

{"title":"Advanced carrier sensing to resolve local channel congestion","authors":"R. Schmidt, A. Brakemeier, T. Leinmüller, F. Kargl, G. Schäfer","doi":"10.1145/2030698.2030701","DOIUrl":"https://doi.org/10.1145/2030698.2030701","url":null,"abstract":"Communication performance in VANETs under high channel load is significantly degraded due to packet collisions and messages drops, also referred to as local channel congestion. So far, research was focused on the control of transmit power and the limitation of the messages rate to mitigate the effects of high load. Few attention has been paid to the carrier sensing setup, i.e controlling WHEN the channel is indicated as clear. In previous work, we identified that the Clear Channel Assessment (CCA) as part of the carrier sensing is a very efficient way of controlling the spatial reuse under high load. The CCA threshold determines at which received power level the channel is sensed busy. In this paper, we propose a stepwise CCA Threshold Adjustment (CTA) depending on how long the packet has been waiting already for medium access. This basic and robust approach mitigates significantly the problem of local message queue drops and hence local congestion. The simulation study confirms the reduction of the average and maximum medium access delay as well as the prevention of message queue drops. Even under inaccurate CCA thresholds among the vehicles, fairness in medium access can be maintained by using CTA. In all cases, the awareness of each vehicle is dramatically improved within the safety-critical area of each vehicle.","PeriodicalId":416154,"journal":{"name":"International Workshop on VehiculAr Inter-NETworking","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125702604","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

Emergency braking: a study of network and application performance 紧急制动:网络与应用性能研究

International Workshop on VehiculAr Inter-NETworking Pub Date : 2011-09-23 DOI: 10.1145/2030698.2030700

Michele Segata, R. Cigno

{"title":"Emergency braking: a study of network and application performance","authors":"Michele Segata, R. Cigno","doi":"10.1145/2030698.2030700","DOIUrl":"https://doi.org/10.1145/2030698.2030700","url":null,"abstract":"Safety applications are among the key drivers in VANET research. Their study is complex as it encompasses different disciplines, from wireless networking to car dynamics, to drivers' behavior, not to mention the economic and legal aspects. This work presents a simulative study of emergency braking applications tackled by embedding a mobility, cars' dynamic, and driver's behavior model into a detailed networking simulator (ns-3). The results, derived both at the network and at the application level, capture correctly the interactions of the communications and protocols with the car's adaptive cruise control system and the driver's behavior for cars that are not equipped with communication devices. The paper presents in detail the improvements we contribute in simulation techniques and model completeness. It introduces a novel and easy message aggregation technique to empower message re-propagation while controlling the network load during the peak due to the emergency braking. Finally it discusses the effectiveness of such applications as a function of the market penetration rate, showing that even cars that are not equipped with communication devices benefit from the smoother and earlier reaction of those cars that can communicate and whose adaptive cruise control implements a correct deceleration strategy.","PeriodicalId":416154,"journal":{"name":"International Workshop on VehiculAr Inter-NETworking","volume":"38-40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132068866","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: 8

Analysis of application-specific broadcast reliability for vehicle safety communications 车辆安全通信专用广播可靠性分析

International Workshop on VehiculAr Inter-NETworking Pub Date : 2011-09-23 DOI: 10.1145/2030698.2030709

Hongsheng Lu, C. Poellabauer

引用次数: 21

LIMERIC: a linear message rate control algorithm for vehicular DSRC systems 用于车载DSRC系统的线性消息速率控制算法

International Workshop on VehiculAr Inter-NETworking Pub Date : 2011-09-23 DOI: 10.1145/2030698.2030702

J. Kenney, G. Bansal, C. Rohrs

{"title":"LIMERIC: a linear message rate control algorithm for vehicular DSRC systems","authors":"J. Kenney, G. Bansal, C. Rohrs","doi":"10.1145/2030698.2030702","DOIUrl":"https://doi.org/10.1145/2030698.2030702","url":null,"abstract":"Wireless vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communication holds great promise for significantly reducing the human and financial costs of vehicle collisions. A common characteristic of this communication is the broadcast of a device's core state information at regular intervals (e.g. a vehicle's speed and location, or a traffic signal's state and timing). The aggregate of these uncoordinated broadcasts will lead to channel congestion under dense traffic scenarios, with a resulting reduction in the effectiveness of the collision avoidance applications making use of the transmitted information. Active congestion control using distributed techniques is a topic of great interest for establishing the scalability of this technology for deployment. This paper defines a new congestion control algorithm that can be applied to the message rate of devices in this vehicular environment. While other published approaches rely on binary control, the LInear MEssage Rate Integrated Control (LIMERIC) algorithm takes advantage of full precision control inputs that are available on the wireless channel. The result is provable convergence to fair and efficient channel utilization in the deterministic environment, under simple criteria for setting adaptive parameters. This \"perfect\" convergence avoids the limit cycle behavior inherent to binary control. We also discuss several practical aspects associated with implementing LIMERIC, including: guidelines for the choice of system parameters to obtain desired utilization outcomes, a gain saturation technique that maintains robust stability under all conditions, convergence with asynchronous updates, and the implications of measurement noise for statistical properties of convergence. The paper illustrates key analytical results using MATLAB numerical results, and employs standard NS-2 simulations to demonstrate the performance of LIMERIC in several high density scenarios.","PeriodicalId":416154,"journal":{"name":"International Workshop on VehiculAr Inter-NETworking","volume":"29 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117272646","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: 117