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Stochastic Geometry Methods for Modeling Automotive Radar Interference

2017; Institute of Electrical and Electronics Engineers; Volume: 19; Issue: 2 Linguagem: Inglês

10.1109/tits.2016.2632309

1558-0016

Akram Al‐Hourani, Robin J. Evans, Sithamparanathan Kandeepan, Bill Moran, Hamid Eltom,

Millimeter-Wave Propagation and Modeling

As the use of automotive radar increases, performance limitations associated with radar-to-radar interference will become more significant. In this paper, we employ tools from stochastic geometry to characterize the statistics of radar interference. Specifically, using two different models for the spatial distributions of vehicles, namely, a Poisson point process and a Bernoulli lattice process, we calculate for each case the interference statistics and obtain analytical expressions for the probability of successful range estimation. This paper shows that the regularity of the geometrical model appears to have limited effect on the interference statistics, and so it is possible to obtain tractable tight bounds for the worst case performance. A technique is proposed for designing the duty cycle for the random spectrum access, which optimizes the total performance. This analytical framework is verified using Monte Carlo simulations.