Physical-Layer Security for Vehicle-to-Everything Networks: Increasing Security While Maintaining Reliable Communications

摘要

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.