Proving Reliability of Anonymous Information in VANETs
Proving Reliability of Anonymous Information in VANETs
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DOI：
10.1109/tvt.2008.2010325
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发表时间：
2009-07
影响因子：
6.8
通讯作者：
Gina Kounga;T. Walter;Sven Lachmund
中科院分区：
文献类型：
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作者：
Gina Kounga;T. Walter;Sven Lachmund
无线通信的进步允许在车辆之间建立通信链路以在它们之间交换信息。这样的车辆自组织网络（VANELS）对于增强交通安全是重要的，因为诸如道路或交通状况的关键环境状况可以在VANELS中的车辆之间快速交换。然而，为了对驾驶员有用，信息必须是可靠的，即，收到的信息很可能确实反映了实际情况。一种方法是，如果信息得到各种来源的证实，就认为它是可靠的。为了实现这一点，接收到的消息必须是可区分的。这可能成为对驾驶员隐私的威胁，因为通过观察消息，可以跟踪车辆。在本文中，我们解决上述问题。我们将信息的可靠性建立在确认特定信息的不同来源的数量上，并且该数量必须大于给定的阈值。我们通过让车辆经常改变身份来解决不可追溯性。我们的方法可以扩展到车辆上的存储以及认证机构的身份管理。
Advances in wireless communications allow setting up communication links between vehicles for the exchange of information between them. Such vehicular ad hoc networks (VANETs) are important to enhance traffic safety since critical environmental conditions, such as road or traffic conditions, can be rapidly exchanged between vehicles in VANETs. However, to be useful for the driver, the information must be reliable, i.e., with great probability, the received information indeed reflects the actual situation. One approach to this is to regard information as reliable if it is confirmed by various sources. To achieve this, messages received must be distinguishable. This may become a threat against the privacy of drivers since by observing messages, vehicles may be traced. In this paper, we address the mentioned problems. We base the reliability of information on the number of different sources that confirmed specific information, and that number must be greater than a given threshold. We address the nontraceability by letting vehicles change their identity frequently. Our approach scales with respect to storage on the vehicle, as well as management of identities at a certification authority.