A GPU Implementation of a Shooting and Bouncing Ray Tracing Method for Radio Wave Propagation

摘要

Shooting and bouncing ray tracing method (SBR) is widely adopted in radio wave propagation simulations. Compared with the center-my tube model, the lateral-ray tube model is more accurate but more time consuming. As a result, we use graphics processing unit (GPU) to accelerate the lateral-ray tube model. In this paper, we proposed a GPU-Based shooting and bouncing lateral-ray tube tracing method that is applied to predicting the radio wave propagation. The numerical experiment demonstrates that the GPU-based SBR can significantly improve the computational efficiency of lateral-ray tube model about 16 times faster, while providing the same accuracy as the CPU-based SBR. The most efficient mode of transferring the data of triangle faces is also discussed.