Point Cloud Ray-Launching Simulations of Indoor Multipath Channels at 60 GHz

Pasi Koivumaki*, Katsuyuki Haneda

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

In this work we present a novel ray-launching (RL) method for field prediction utilizing a laser-scanned point cloud model of the environment. The method takes advantage of the high level of detail found in the point cloud to simulate propagation of rays as they undergo reflection and transmission through local surfaces represented by points of the point cloud. The method is implemented using MATLAB's Parallel Computing Toolbox and its GPU Computing library for straightforward parallelization and acceleration of computations. Indoor multipath channels are simulated at the 60 GHz band and compared to their measured counterparts to study accuracy of the presented method. Up to 6 reflections and 3 transmissions can be simulated in approximately 6 minutes. Utilizing a post-processing step to eliminate propagation paths with near-identical trajectories, an issue seemingly unique to point clouds, the channel is well reproduced in terms of path gains and a relative error of less than 10% for delay spread.

Original languageEnglish
Title of host publication2022 IEEE 33rd Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2022
PublisherIEEE
Number of pages7
ISBN (Electronic)978-1-6654-8053-6
DOIs
Publication statusPublished - 2022
MoE publication typeA4 Article in a conference publication
EventIEEE International Symposium on Personal, Indoor and Mobile Radio Communications - Virtual, Online, Japan
Duration: 12 Sept 202215 Sept 2022

Publication series

NameIEEE International Symposium on Personal, Indoor, and Mobile Radio Communications workshops
Volume2022-September
ISSN (Print)2166-9570
ISSN (Electronic)2166-9589

Conference

ConferenceIEEE International Symposium on Personal, Indoor and Mobile Radio Communications
Abbreviated titlePIMRC
Country/TerritoryJapan
CityVirtual, Online
Period12/09/202215/09/2022

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