Ray Tracing Acceleration Using Total Variation Norm Minimization for Radio Map Simulation

Norisato Suga, Ryohei Sasaki, Makoto Osawa, Toshihiro Furukawa

研究成果: Article査読

1 被引用数 (Scopus)

抄録

In this letter, a ray tracing (RT) acceleration method based on the total variation norm minimization (TVNM) scheme is presented. RT is a general tool used to analyze wireless communication environments. However, the simulation is time consuming because of the large number of ray calculations. This letter focuses on radio map interpolation as an acceleration approach. For radio map interpolation, we adopt TVNM, which is a representative edge-preserving interpolation method in the field of image processing. We regard the non-line-of-sight and line-of-sight region boundary as the edge of the radio map and use TVNM to achieve accurate interpolation. Furthermore, we consider known position selection to enhance the interpolation accuracy of TVNM. A computational simulation using commercial RT software revealed that the interpolation accuracy of the proposed method was better than those of other radio map interpolation methods and that RT simulation can be accelerated with an acceptable interpolation error.

本文言語English
論文番号9250529
ページ(範囲)522-526
ページ数5
ジャーナルIEEE Wireless Communications Letters
10
3
DOI
出版ステータスPublished - 2021 3月
外部発表はい

ASJC Scopus subject areas

  • 制御およびシステム工学
  • 電子工学および電気工学

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