Physical-Layer Security of Uplink mmWave Transmissions in Cellular V2X Networks

In this paper, we investigate physical-layer security of the uplink millimeter wave communications for a cellular vehicle-to-everything (C-V2X) network comprised large number base stations (BSs) and different categories V2X nodes, including vehicles, pedestrians, road side units. Considering dynamic change randomness topology C-V2X network, model roadways, nodes on each roadway, BSs by Poisson line process, 1D point process (PPP), 2D PPP, respectively. We propose two association schemes typical vehicle, namely, smallest-distance (SDA) scheme largest-power (LPA) scheme, establish tractable analytical framework to comprehensively assess performance transmission, leveraging stochastic geometry theory. Specifically, first obtain new expressions probability then derive overall connection outage secrecy calculating Laplace transform aggregate interference power. Numerical results are presented validate our theoretical analysis, also provide interesting insights into how is influenced various system parameters, densities BSs. Moreover, show that LPA outperforms SDA in terms throughput.