Pub Date : 2017-11-01DOI: 10.1109/VNC.2017.8275651
F. Beritelli, F. Scaglione
In the upcoming years, vehicular networking and communications will be an optimal solution for road safety improvement. Rain is one of the major cause of car accidents, as it dramatically reduces both friction between the vehicle and the ground and driver's visibility. In this paper, we will introduce a new and innovative method suited for rainfall estimation, which is based on the power attenuation measured on the vehicular radio link from the base radio station to an on-board LTE receiver. The proposed algorithm discriminates between 4 classes of rainfall as follows: no rain, weak, moderate, heavy rain. The performance results show 84,4 % accuracy as well as high spatial resolution.
{"title":"Poster: Real-time rainfall estimation based on LTE vehicular communications for road safety applications","authors":"F. Beritelli, F. Scaglione","doi":"10.1109/VNC.2017.8275651","DOIUrl":"https://doi.org/10.1109/VNC.2017.8275651","url":null,"abstract":"In the upcoming years, vehicular networking and communications will be an optimal solution for road safety improvement. Rain is one of the major cause of car accidents, as it dramatically reduces both friction between the vehicle and the ground and driver's visibility. In this paper, we will introduce a new and innovative method suited for rainfall estimation, which is based on the power attenuation measured on the vehicular radio link from the base radio station to an on-board LTE receiver. The proposed algorithm discriminates between 4 classes of rainfall as follows: no rain, weak, moderate, heavy rain. The performance results show 84,4 % accuracy as well as high spatial resolution.","PeriodicalId":101592,"journal":{"name":"2017 IEEE Vehicular Networking Conference (VNC)","volume":"171 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":"126131465","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}
Pub Date : 2017-11-01DOI: 10.1109/VNC.2017.8275617
R. Stahlmann, Andrea Tornatis, R. German, D. Eckhoff
Green Light Optimal Speed Advisory (GLOSA) systems contribute to the reduction of CO2 emissions and fuel consumption by giving speed advice to drivers based on current and future traffic light signal phase timings so they can avoid unneeded stopping and acceleration. These systems have been well investigated by means of simulations and real-world tests. In previous work we have shown that simulations tend to overestimate the communication quality to be expected in urban environments and that in a real-world test, IEEE 802.11p-based GLOSA cannot always reach the required information distance. Although multi-hop information dissemination can help alleviate this problem, it has not yet received much attention from the research community in the context of GLOSA systems. In this paper we present results from extensive field tests with almost 200 traffic light approaches. We find that two-hop dissemination of signal phase and timing information from traffic lights increases the maximum information distance by around 35% and is able to support continuous updates even in challenging environments.
{"title":"Multi-hop for GLOSA systems: Evaluation and results from a field experiment","authors":"R. Stahlmann, Andrea Tornatis, R. German, D. Eckhoff","doi":"10.1109/VNC.2017.8275617","DOIUrl":"https://doi.org/10.1109/VNC.2017.8275617","url":null,"abstract":"Green Light Optimal Speed Advisory (GLOSA) systems contribute to the reduction of CO2 emissions and fuel consumption by giving speed advice to drivers based on current and future traffic light signal phase timings so they can avoid unneeded stopping and acceleration. These systems have been well investigated by means of simulations and real-world tests. In previous work we have shown that simulations tend to overestimate the communication quality to be expected in urban environments and that in a real-world test, IEEE 802.11p-based GLOSA cannot always reach the required information distance. Although multi-hop information dissemination can help alleviate this problem, it has not yet received much attention from the research community in the context of GLOSA systems. In this paper we present results from extensive field tests with almost 200 traffic light approaches. We find that two-hop dissemination of signal phase and timing information from traffic lights increases the maximum information distance by around 35% and is able to support continuous updates even in challenging environments.","PeriodicalId":101592,"journal":{"name":"2017 IEEE Vehicular Networking Conference (VNC)","volume":"21 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":"122323579","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}
Pub Date : 2017-11-01DOI: 10.1109/VNC.2017.8275645
I. Khan, Gia-Minh Hoang, Jérôme Härri
In this paper, we redefine cooperative awareness to include both GPS and communication-induced position errors. We reduce the GPS error through fusion-based Cooperative Localization (CLoc), and exchange such information instead of GPS coordinates. We mitigate the communication-induced errors by a novel awareness control strategy aiming at breaking the 10Hz barrier using a very lightweight awareness message. We evaluate the scalability limit of our strategy and show via simulation results that we can reach a packet Inter-Reception Time (IRT) of 15ms up to 50m at a channel load below 60%, leading to a position awareness error below 0.8m. This is a 4x improvement compared to current standards, and is an enabler to the reactivity and precision required by future ITS-G5 autonomous vehicles.
{"title":"Rethinking cooperative awareness for future V2X safety-critical applications","authors":"I. Khan, Gia-Minh Hoang, Jérôme Härri","doi":"10.1109/VNC.2017.8275645","DOIUrl":"https://doi.org/10.1109/VNC.2017.8275645","url":null,"abstract":"In this paper, we redefine cooperative awareness to include both GPS and communication-induced position errors. We reduce the GPS error through fusion-based Cooperative Localization (CLoc), and exchange such information instead of GPS coordinates. We mitigate the communication-induced errors by a novel awareness control strategy aiming at breaking the 10Hz barrier using a very lightweight awareness message. We evaluate the scalability limit of our strategy and show via simulation results that we can reach a packet Inter-Reception Time (IRT) of 15ms up to 50m at a channel load below 60%, leading to a position awareness error below 0.8m. This is a 4x improvement compared to current standards, and is an enabler to the reactivity and precision required by future ITS-G5 autonomous vehicles.","PeriodicalId":101592,"journal":{"name":"2017 IEEE Vehicular Networking Conference (VNC)","volume":"41 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":"115066538","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}
Pub Date : 2017-11-01DOI: 10.1109/VNC.2017.8275606
G. Giordano, Michele Segata, F. Blanchini, R. Cigno
Cooperative automatic driving, or platooning, is a promising solution to improve traffic safety, while reducing congestion and pollution. The design of a control system for this application is a challenging, multi-disciplinary problem, as cooperation between vehicles is obtained through wireless communication. So far, control and network issues of platooning have been investigated separately. In this work we design a cooperative driving system from a joint network and control perspective, determining worst-case upper bounds on the safety distance subject to network losses, so the actual inter-vehicle gap can be tuned depending on vehicle or network performance. By means of simulation, we show that the system is very robust to packet losses and that the derived bounds are never violated.
{"title":"A joint network/control design for cooperative automatic driving","authors":"G. Giordano, Michele Segata, F. Blanchini, R. Cigno","doi":"10.1109/VNC.2017.8275606","DOIUrl":"https://doi.org/10.1109/VNC.2017.8275606","url":null,"abstract":"Cooperative automatic driving, or platooning, is a promising solution to improve traffic safety, while reducing congestion and pollution. The design of a control system for this application is a challenging, multi-disciplinary problem, as cooperation between vehicles is obtained through wireless communication. So far, control and network issues of platooning have been investigated separately. In this work we design a cooperative driving system from a joint network and control perspective, determining worst-case upper bounds on the safety distance subject to network losses, so the actual inter-vehicle gap can be tuned depending on vehicle or network performance. By means of simulation, we show that the system is very robust to packet losses and that the derived bounds are never violated.","PeriodicalId":101592,"journal":{"name":"2017 IEEE Vehicular Networking Conference (VNC)","volume":"114 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":"121835903","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}
Pub Date : 2017-11-01DOI: 10.1109/VNC.2017.8275599
M. D. Noes
Spread spectrum transmission is presented as an anti-jamming alternative for ITS. In this article, the vulnerability of this technology to eavesdropping, and consequently jamming, is highlighted. Applying an iterative message-passing algorithm, it is possible to estimate the initial state of an m-sequence or Gold sequence generator, and hence be able to generate the same spreading sequence as the target user. As a result, an attacker can generate a valid jamming signal which will be difficult to detect at the physical layer. The practicability and efficiency of this attack depend on some properties of these sequences: number and smallest degree of low weight parity check equations. These two properties are analyzed and exploited to provide some recommendations for the implementation of a practical spread spectrum communication system. Eventually, simulation results show the feasibility of this attack.
{"title":"Recommendations for the implementation of a practical spread spectrum communication system robust against smart jamming","authors":"M. D. Noes","doi":"10.1109/VNC.2017.8275599","DOIUrl":"https://doi.org/10.1109/VNC.2017.8275599","url":null,"abstract":"Spread spectrum transmission is presented as an anti-jamming alternative for ITS. In this article, the vulnerability of this technology to eavesdropping, and consequently jamming, is highlighted. Applying an iterative message-passing algorithm, it is possible to estimate the initial state of an m-sequence or Gold sequence generator, and hence be able to generate the same spreading sequence as the target user. As a result, an attacker can generate a valid jamming signal which will be difficult to detect at the physical layer. The practicability and efficiency of this attack depend on some properties of these sequences: number and smallest degree of low weight parity check equations. These two properties are analyzed and exploited to provide some recommendations for the implementation of a practical spread spectrum communication system. Eventually, simulation results show the feasibility of this attack.","PeriodicalId":101592,"journal":{"name":"2017 IEEE Vehicular Networking Conference (VNC)","volume":"129 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":"116693196","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}
Pub Date : 2017-11-01DOI: 10.1109/VNC.2017.8275655
G. Avino, M. Malinverno, F. Malandrino, C. Casetti, C. Chiasserini, G. Nardini, S. Scarpina
This paper presents a simulation-based testbed for the study of collision detection in vehicular networks. We combine the Omnet++ discrete-event simulator with the SUMO mobility simulator and the SimuLTE framework, in order to study an intersection scenario where the road-side unit also integrates a collision detector. Through this set of tools, we are able to simulate the exchange of cooperative awareness messages (CAMs) and collision alerts, and evaluate the timeliness with which the latter are received.
{"title":"Poster: A simulation-based testbed for vehicular collision detection","authors":"G. Avino, M. Malinverno, F. Malandrino, C. Casetti, C. Chiasserini, G. Nardini, S. Scarpina","doi":"10.1109/VNC.2017.8275655","DOIUrl":"https://doi.org/10.1109/VNC.2017.8275655","url":null,"abstract":"This paper presents a simulation-based testbed for the study of collision detection in vehicular networks. We combine the Omnet++ discrete-event simulator with the SUMO mobility simulator and the SimuLTE framework, in order to study an intersection scenario where the road-side unit also integrates a collision detector. Through this set of tools, we are able to simulate the exchange of cooperative awareness messages (CAMs) and collision alerts, and evaluate the timeliness with which the latter are received.","PeriodicalId":101592,"journal":{"name":"2017 IEEE Vehicular Networking Conference (VNC)","volume":"8 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":"121190340","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}
Pub Date : 2017-11-01DOI: 10.1109/VNC.2017.8275626
Takuya Watanabe, H. Morino
Sags are road sections where gradient slowly changes from downslope to upslope, being mainly found in expressways. It has been observed that some drivers are not aware of speed decrease due to grade resistance at sags, and as a result congestion occurs. For velocity control to mitigate the congestion, the theory of Jam Absorption Driving (JAD) has been attracting attentions which encourages vehicles running behind the congested platoon to reduce their speed and to delay arrival to the platoon. The authors have presented velocity control system that utilizes inter-vehicle communication with long range wireless system such as 700MHz ARIB-T109 for quickly sharing congestion information among cars and leads cars approaching the congested platoon to perform JAD. This paper evaluates the proposed scheme by focusing the effect on the communication range of wireless system on the congestion alleviation performance. The simulation results show that using communication range of 1km has substantially reduce the travel time of the vehicles compared to using small communication range such as 300m and information is relayed among cars with multihop broadcast. Also, this configuration is effective for the case where only low ratio of vehicles are equipped with communication systems. The findings of the paper show that the proposed scheme is beneficial to improve traffic flow at sags.
{"title":"Performance study of inter-vehicle information dissemination using long range wireless system for assisting congestion resolution at sags","authors":"Takuya Watanabe, H. Morino","doi":"10.1109/VNC.2017.8275626","DOIUrl":"https://doi.org/10.1109/VNC.2017.8275626","url":null,"abstract":"Sags are road sections where gradient slowly changes from downslope to upslope, being mainly found in expressways. It has been observed that some drivers are not aware of speed decrease due to grade resistance at sags, and as a result congestion occurs. For velocity control to mitigate the congestion, the theory of Jam Absorption Driving (JAD) has been attracting attentions which encourages vehicles running behind the congested platoon to reduce their speed and to delay arrival to the platoon. The authors have presented velocity control system that utilizes inter-vehicle communication with long range wireless system such as 700MHz ARIB-T109 for quickly sharing congestion information among cars and leads cars approaching the congested platoon to perform JAD. This paper evaluates the proposed scheme by focusing the effect on the communication range of wireless system on the congestion alleviation performance. The simulation results show that using communication range of 1km has substantially reduce the travel time of the vehicles compared to using small communication range such as 300m and information is relayed among cars with multihop broadcast. Also, this configuration is effective for the case where only low ratio of vehicles are equipped with communication systems. The findings of the paper show that the proposed scheme is beneficial to improve traffic flow at sags.","PeriodicalId":101592,"journal":{"name":"2017 IEEE Vehicular Networking Conference (VNC)","volume":"233 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":"116409514","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}
Pub Date : 2017-11-01DOI: 10.1109/VNC.2017.8275620
N. Wang, Xi Wang, P. Palacharla, T. Ikeuchi
In this paper, we consider the problem of cooperative driving for connected autonomous vehicles to reduce traffic congestion. The connected autonomous vehicles are able to exchange information as well as driving intentions with surrounding vehicles through vehicle-to-vehicle (V2V) communications. We define three driving conditions for a given vehicle, namely, maximum, deadlock, and freerun, in which a deadlock condition implies that the vehicle is in a congestion condition that cannot be resolved alone. For the purpose of improving overall traffic flow, we design a strategy called Altruistic Cooperative Driving (ACD), in which a connected autonomous vehicle can automatically identify a deadlock condition and form a multi-vehicle coordination group to resolve the deadlock through a cooperative maneuver procedure. The proposed ACD is evaluated in our traffic simulator in terms of speed efficiency and communication traffic between the connected autonomous vehicles. The results show that ACD can improve speed efficiency and successfully resolve traffic congestion caused by deadlock conditions.
{"title":"Cooperative autonomous driving for traffic congestion avoidance through vehicle-to-vehicle communications","authors":"N. Wang, Xi Wang, P. Palacharla, T. Ikeuchi","doi":"10.1109/VNC.2017.8275620","DOIUrl":"https://doi.org/10.1109/VNC.2017.8275620","url":null,"abstract":"In this paper, we consider the problem of cooperative driving for connected autonomous vehicles to reduce traffic congestion. The connected autonomous vehicles are able to exchange information as well as driving intentions with surrounding vehicles through vehicle-to-vehicle (V2V) communications. We define three driving conditions for a given vehicle, namely, maximum, deadlock, and freerun, in which a deadlock condition implies that the vehicle is in a congestion condition that cannot be resolved alone. For the purpose of improving overall traffic flow, we design a strategy called Altruistic Cooperative Driving (ACD), in which a connected autonomous vehicle can automatically identify a deadlock condition and form a multi-vehicle coordination group to resolve the deadlock through a cooperative maneuver procedure. The proposed ACD is evaluated in our traffic simulator in terms of speed efficiency and communication traffic between the connected autonomous vehicles. The results show that ACD can improve speed efficiency and successfully resolve traffic congestion caused by deadlock conditions.","PeriodicalId":101592,"journal":{"name":"2017 IEEE Vehicular Networking Conference (VNC)","volume":"29 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":"122996205","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}
Pub Date : 2017-11-01DOI: 10.1109/VNC.2017.8275622
Sangrok Han, Hyogon Kim, Yongtae Park
In order to mitigate privacy violations in Wireless Access in Vehicular Environment (WAVE) technology, the WAVE standards prescribe pseudonymity as the primary solution. However, there are hidden complexities and costs that are incurred by the solution for non-safety, IP-based communications. Specifically, the re-addressing across the protocol stack triggered by pseudonym changes interact complicatedly with TCP/IP protocol components such as Multicast Listener Discovery, Duplicate Address Detection, TCP retransmission, and the TCP/IP networking constructs in operating systems. Unless carefully handled, they can compromise the IP communication performance or the privacy property arising from the pseudonymity. In this paper, we illustrate these points with an emphasis on connection management, through a Multipath TCP (MPTCP)-based implementation.
{"title":"Overcoming IP communication breakdown upon pseudonym changes in the IEEE WAVE","authors":"Sangrok Han, Hyogon Kim, Yongtae Park","doi":"10.1109/VNC.2017.8275622","DOIUrl":"https://doi.org/10.1109/VNC.2017.8275622","url":null,"abstract":"In order to mitigate privacy violations in Wireless Access in Vehicular Environment (WAVE) technology, the WAVE standards prescribe pseudonymity as the primary solution. However, there are hidden complexities and costs that are incurred by the solution for non-safety, IP-based communications. Specifically, the re-addressing across the protocol stack triggered by pseudonym changes interact complicatedly with TCP/IP protocol components such as Multicast Listener Discovery, Duplicate Address Detection, TCP retransmission, and the TCP/IP networking constructs in operating systems. Unless carefully handled, they can compromise the IP communication performance or the privacy property arising from the pseudonymity. In this paper, we illustrate these points with an emphasis on connection management, through a Multipath TCP (MPTCP)-based implementation.","PeriodicalId":101592,"journal":{"name":"2017 IEEE Vehicular Networking Conference (VNC)","volume":"1 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":"131150276","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}
Pub Date : 2017-11-01DOI: 10.1109/VNC.2017.8275631
G. Neven, G. Baldini, J. Camenisch, R. Neisse
In Cooperative Intelligent Transport Systemss (C-ITSs), vehicles broadcast their location and other information over dedicated short-range radio channels. This communication must be authenticated to protect the information against tampering, but at the same time must be anonymous to protect the location privacy of the driver. The most prominent C-ITS solutions today let vehicles either store large numbers of preloaded pseudonym certificates, or let them regularly fetch new pseudonyms from an online authority. More advanced solutions based on group signatures or anonymous credentials allow vehicles to generate arbitrarily many pseudonyms locally, without requiring further interaction. These solutions, however, are vulnerable to Sybil attacks, as the compromised key material of a single vehicle could be used to impersonate an arbitrary number of vehicles simultaneously. In this paper, we propose a new generic approach for C-ITS authentication based on privacy-preserving Attribute-Based Credential (ABC) that generates pseudonyms locally on the vehicle, but where only one valid pseudonym can be generated at any given time. The computational performance and signature sizes of current Privacy-ABC schemes makes them more useful for low-frequency warning messages than for high-frequency beaconing. We therefore see our approach rather as a conceptual framework that can direct further research into more efficient dedicated implementations.
{"title":"Privacy-preserving attribute-based credentials in cooperative intelligent transport systems","authors":"G. Neven, G. Baldini, J. Camenisch, R. Neisse","doi":"10.1109/VNC.2017.8275631","DOIUrl":"https://doi.org/10.1109/VNC.2017.8275631","url":null,"abstract":"In Cooperative Intelligent Transport Systemss (C-ITSs), vehicles broadcast their location and other information over dedicated short-range radio channels. This communication must be authenticated to protect the information against tampering, but at the same time must be anonymous to protect the location privacy of the driver. The most prominent C-ITS solutions today let vehicles either store large numbers of preloaded pseudonym certificates, or let them regularly fetch new pseudonyms from an online authority. More advanced solutions based on group signatures or anonymous credentials allow vehicles to generate arbitrarily many pseudonyms locally, without requiring further interaction. These solutions, however, are vulnerable to Sybil attacks, as the compromised key material of a single vehicle could be used to impersonate an arbitrary number of vehicles simultaneously. In this paper, we propose a new generic approach for C-ITS authentication based on privacy-preserving Attribute-Based Credential (ABC) that generates pseudonyms locally on the vehicle, but where only one valid pseudonym can be generated at any given time. The computational performance and signature sizes of current Privacy-ABC schemes makes them more useful for low-frequency warning messages than for high-frequency beaconing. We therefore see our approach rather as a conceptual framework that can direct further research into more efficient dedicated implementations.","PeriodicalId":101592,"journal":{"name":"2017 IEEE Vehicular Networking Conference (VNC)","volume":"1 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":"133154973","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}
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