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Paper Abstract and Keywords
Presentation 2026-06-04 17:00
[Invited Lecture] Transmission Performance Evaluation of 5G NR Signal at Sub-THz Band in Corridor Environment Using Ultra-Wideband Software-Defined Radio Platform
Muko Okamatsu, Shota Mori, Norichika Ohmi, Yusuke Koda, Hiroshi Harada (Kyoto Univ.) SRW2026-9 MWPTHz2026-9
Abstract (in Japanese) (See Japanese page) 
(in English) To achieve further increases in data rate and capacity for sixth-generation (6G) mobile communication systems, the use of the sub-terahertz (sub-THz) band has attracted significant attention. Promoting the utilization of the sub-THz band toward 6G requires the consideration of various usage models and, for each model, a detailed understanding of propagation characteristics as well as transmission characteristics of wideband modulated signals through experiments using actual radio transmission platform. In particular, for 6G, the possibility of adopting the physical layer signal format of 5G NR (New Radio) is under discussion, and acquiring transmission characteristic data in accordance with this format is important for establishing design guidelines for future sub-THz band wireless communication systems. In this paper, we conduct transmission experiments in an indoor corridor environment assuming device-to-device communications for applications such as uncompressed video transmission and large-capacity file sharing, and evaluate the transmission characteristics. Specifically, using a software-defined radio platform capable of receiving ultra-wideband signals with a maximum bandwidth of 1 GHz, we conduct a transmission trial of a 5G NR signal with a bandwidth of 920 MHz at a 105 GHz band. We demonstrate that when both transmitting and receiving antennas are omnidirectional, a signal with a maximum carrier transmission rate of 1.7 Gbit/s can be transmitted up to 6.0 m while satisfying a block error rate of 0.1 or less. Furthermore, we clarify that when a directional antenna is used at the receiver, coverage can be extended to all areas of the corridor, enabling signal transmission with a maximum carrier transmission rate of 5.1 Gbit/s.
Keyword (in Japanese) (See Japanese page) 
(in English) Sub-THz band / 5G NR / Transmission performance evaluation / / / / /  
Reference Info. IEICE Tech. Rep., vol. 126, no. 55, SRW2026-9, pp. 34-39, June 2026.
Paper # SRW2026-9 
Date of Issue 2026-05-28 (SRW, MWPTHz) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF SRW2026-9 MWPTHz2026-9

Conference Information
Committee SRW MWPTHz  
Conference Date 2026-06-04 - 2026-06-05 
Place (in Japanese) (See Japanese page) 
Place (in English) NICT Innovation center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) MWPTHz, WLAN, WPAN, Ad-hoc, mmWave, THz, etc. 
Paper Information
Registration To SRW 
Conference Code 2026-06-SRW-MWPTHz 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Transmission Performance Evaluation of 5G NR Signal at Sub-THz Band in Corridor Environment Using Ultra-Wideband Software-Defined Radio Platform 
Sub Title (in English)  
Keyword(1) Sub-THz band  
Keyword(2) 5G NR  
Keyword(3) Transmission performance evaluation  
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1st Author's Name Muko Okamatsu  
1st Author's Affiliation Kyoto University (Kyoto Univ.)
2nd Author's Name Shota Mori  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
3rd Author's Name Norichika Ohmi  
3rd Author's Affiliation Kyoto University (Kyoto Univ.)
4th Author's Name Yusuke Koda  
4th Author's Affiliation Kyoto University (Kyoto Univ.)
5th Author's Name Hiroshi Harada  
5th Author's Affiliation Kyoto University (Kyoto Univ.)
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Speaker Author-1 
Date Time 2026-06-04 17:00:00 
Presentation Time 25 minutes 
Registration for SRW 
Paper # SRW2026-9, MWPTHz2026-9 
Volume (vol) vol.126 
Number (no) no.55(SRW), no.56(MWPTHz) 
Page pp.34-39 
#Pages 6 
Date of Issue 2026-05-28 (SRW, MWPTHz) 

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