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

作者：Shi, Dan^*; Tang, Xiaohe; Wang, Chu; Zhao, Ming; Gao, Yougang

来源：Applied Computational Electromagnetics Society Journal, 2017, 32(7): 614-620.

• Compute unified device architecture (CUDA)
• graphics processing unit (GPU)
• radio wave propagation
• ray tracing
• shooting and bouncing ray (SBR)

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.

• 出版日期2017-7
• 单位北京邮电大学