Presentation 2023-03-16
A Study of Multipath Estimation using Color Images Method
Takahiro Tomie, Satoshi Suyama, Koshiro Kitao, Mitsuki Nakamura,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) Currently, research and development of realization of the 6th generation mobile communication system (6G) are carried out intensively by many organizations around the world. In order to maximize the performance of 6G systems using dynamic control by cyber-physical system (CPS), a technology for estimating and predicting radio propagation characteristics in real time with high accuracy is required. To realize the technology, we proposed the color images method (CIM) as a new method for fast estimation of radio propagation characteristics. In the CIM, detecting paths and calculating received powers or path loss, delays, angle characteristics of scattering waves, are based on the color images of the environments which seen from the transmission and receiving points. Up to now, in propagation loss, we have shown superior estimation accuracy and computation time compared to the conventional ray trace method (RTM). In this report, in order to clarify the estimation performance of the CIM for multipath characteristic, we use the CIM to estimate multipath characteristics such as delay times, angle characteristics and compare with those of Wireless InSite employing the RTM.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) 6G / CPS / multipath characteristics estimation / color images method / ray tracing method / estimation performance
Paper # AP2022-239
Date of Issue 2023-03-09 (AP)

Conference Information
Committee AP
Conference Date 2023/3/16(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Toyama Prefectural Civic Hall
Topics (in Japanese) (See Japanese page)
Topics (in English) Antennas and Propagation
Chair Hiroshi Yamada(Niigata Univ.)
Vice Chair Mitoshi Fujimoto(Fukui Univ)
Secretary Mitoshi Fujimoto(National Defense Academy)
Assistant Tomoki Murakami(NTT)

Paper Information
Registration To Technical Committee on Antennas and Propagation
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Study of Multipath Estimation using Color Images Method
Sub Title (in English)
Keyword(1) 6G
Keyword(2) CPS
Keyword(3) multipath characteristics estimation
Keyword(4) color images method
Keyword(5) ray tracing method
Keyword(6) estimation performance
1st Author's Name Takahiro Tomie
1st Author's Affiliation NTT DOCOMO INC.(NTT DOCOMO INC.)
2nd Author's Name Satoshi Suyama
2nd Author's Affiliation NTT DOCOMO INC.(NTT DOCOMO INC.)
3rd Author's Name Koshiro Kitao
3rd Author's Affiliation NTT DOCOMO INC.(NTT DOCOMO INC.)
4th Author's Name Mitsuki Nakamura
4th Author's Affiliation NTT DOCOMO INC.(NTT DOCOMO INC.)
Date 2023-03-16
Paper # AP2022-239
Volume (vol) vol.122
Number (no) AP-441
Page pp.pp.31-36(AP),
#Pages 6
Date of Issue 2023-03-09 (AP)