Abstract
With the popularity of millimeter-wave radar technology in modern vehicles, the problem of mutual interference due to the sharing spectrum scheme is gaining attention. This paper explores the radar mutual interference among multiple vehicles using stochastic geometry. In particular, we consider the fluctuation of the target radar cross section (RCS) using Chi-square model. Based on this model, we derive the closed-form expressions for successful ranging probability including incident interference and reflected interference. The impact of vehicle intensity on the lane, as well as the impact of signal-to- interference-noise ratio, are analyzed. Our analysis shows that the RCS characteristics have a great impact on successful ranging probability. Besides, the reflected interference can incur a substantial decline in radar performance. We verify the correctness of theoretical analysis by Monte Carlo simulations.
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