Modeling mmW Multipath Effects in Urban Environments

In this proposal, we present a novel solution for simulating wave propagation in urban areas with a key emphasis on dynamic scenarios with moving transmitters and receivers/sensors, and potential for moving vehicles.Based on full three-dimensional ray-tracing, our approach encompasses established techniques that are accurate and handle all aspects of multipath, including reflections, diffractions, shadowing and scattering.This is further enhanced to extend from traditional ray-tracing frequencies, usually designed for UHF up to X-Band, to handle critical atmospheric and environmental effects at millimeter wave bands.The key innovations focus on techniques to calculate results rapidly, using a combination of unique preprocessing, optimized path generation, and parallelization and hardware acceleration, deriving from many years of experience in hardware-accelerated solutions for electromagnetic simulation.This provides accurate predictions of multipath, but does so in a way that can handle dynamic, quickly changing conditions, and offers tradeoffs between fidelity and speed.Results are accurate enough to support complex radar and antenna array applications for modern technologies in defense and industry, emphasizing urban scenarios with multipath between points that are in motion.This will provide a valuable new tool for applications in radar, military and commercial communications, and mobility solutions for telecommunications and automotive industries.