This article highlights the potential contribution of physical-layer security in making vehicle-to-infrastructure (V2I) and vehicle-to-vehicle (V2V) networks more secure against eavesdropping. We showcase a set of experiments using a mobile testbed for both types of networks and demonst rate that finite block-length physical-layer security coding increases the security while maintaining reliable communications. The fundamental tradeoffs in achieving both reliability and security through physical-layer efforts are also discussed in terms of relative eavesdropper location in an urban environment.

中文翻译：

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车联网的物理层安全：在保持可靠通信的同时提高安全性

本文重点介绍了物理层安全性在使车对基础设施 (V2I) 和车对车 (V2V) 网络更安全以防止窃听方面的潜在贡献。我们展示了一组使用移动测试台进行两种类型网络的实验，并证明有限块长度物理层安全编码在保持可靠通信的同时提高了安全性。还根据城市环境中的相对窃听者位置讨论了通过物理层努力实现可靠性和安全性的基本权衡。