Abstract
본 논문에서는 무선 망 설계에 필요한 전파 특성 예측을 위한 방법 중 하나인 광선 추적법의 속도 향상 방법을 제시했다. 빠르고 정확한 광선 추적을 위해 ray tube라는 매개체를 이용하여 전파의 반사, 투과, 회절을 계산하는데, 건물 등의 방해물이 많을수록 계산 시간이 매우 늘어나는 문제점을 해결하기 위해 중복된 계산을 줄이는 방법들을 제시했다. In this paper, acceleration techniques for a three dimensional ray tracing method are presented. Ray tracing methods are widely adopted to obtain radio propagation channel models, however calculation times increase with the number of scatters such as buildings, hills and mountains. Various techniques are proposed in combination of ray tube concept.
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