This paper studies the physical layer security (PLS) of a vehicular network employing a reconfigurable intelligent surface (RIS). RIS technologies are emerging as an important paradigm for the realisation of smart radio environments, where large numbers of small, low-cost and passive elements, reflect the incident signal with an adjustable phase shift without requiring a dedicated energy source. Inspired by the promising potential of RIS-based transmission, we investigate two vehicular network system models: One with vehicle-to-vehicle communication with the source employing a RIS-based access point, and the other model in the form of a vehicular adhoc network (VANET), with a RIS-based relay deployed on a building. Both models assume the presence of an eavesdropper to investigate the average secrecy capacity of the considered systems. Monte-Carlo simulations are provided throughout to validate the results. The results show that performance of the system in terms of the secrecy capacity is affected by the location of the RIS-relay and the number of RIS cells. The effect of other system parameters such as source power and eavesdropper distances are also studied.
|Title of host publication
|2020 IEEE 91st Vehicular Technology Conference
|Subtitle of host publication
|VTC Spring 2020
|Institute of Electrical and Electronics Engineers Inc.
|Number of pages
|Published - 30 Jun 2020
|91st IEEE Vehicular Technology Conference - Antwerp, Belgium
Duration: 25 May 2020 → 28 May 2020
Conference number: 91
|IEEE Vehicular Technology Conference
|91st IEEE Vehicular Technology Conference
|VTC Spring 2020
|25/05/20 → 28/05/20