The Discrete Tube: A Spatial Acceleration Technique for Efficient Diffraction Computation

Aveneau, Lilian; Andrès, Éric; Meriaux, Michel

doi:10.1007/3-540-49126-0_32

Cited by 1 publication

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“…But their size must depend on the parameterization of the oracle. Since we search to obtain as many paths as possible, we used the discrete tube technique [6]. This solution allows to quickly find all the edges included into the n first Fresnel ellipsoids.…”

Section: B Implementationmentioning

confidence: 99%

Path finding based on Monte Carlo techniques compared with a full ray-tracing approach in narrow and wide bands

Aveneau

Combeau

2004 IEEE 59th Vehicular Technology Conference. VTC 2004-Spring (IEEE Cat. No.04CH37514)

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Efficient propagation prediction requires a tool both fast and accurate, which are two opposite qualities. Generally, such a tool is fast using crude approximation, leading to miss some propagation paths. Moreover, its accuracy is usually validated by some comparisons to measurement. Then, only the statistical behavior of such a tool is available, but not its particular one for a given scene.In this paper we propose a new optimization for finding the propagation paths, based on the Monte Carlo techniques. It allows a theoretical knowledge of the error due to our approximation, so that any engineer can really choose between faster or accurate calculations.Our approach is compared with a Full Ray Tracing tool : This allows to discuss about the validity of our model, and its gain in terms of computation time. Comparisons are produced both in narrow and wide bands.

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Section: B Implementationmentioning

confidence: 99%

Path finding based on Monte Carlo techniques compared with a full ray-tracing approach in narrow and wide bands

Aveneau

Combeau

2004 IEEE 59th Vehicular Technology Conference. VTC 2004-Spring (IEEE Cat. No.04CH37514)

View full text Add to dashboard Cite

show abstract

The Discrete Tube: A Spatial Acceleration Technique for Efficient Diffraction Computation

Cited by 1 publication

References 6 publications

Path finding based on Monte Carlo techniques compared with a full ray-tracing approach in narrow and wide bands

Path finding based on Monte Carlo techniques compared with a full ray-tracing approach in narrow and wide bands

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