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Paper Abstract and Keywords
Presentation 2024-03-14 11:20
A Time-alignment Method of Multiple Power Delay Profiles Measured by Antenna Rotations Towards Flexible Terahertz Channel Measurements
Hiroaki Endo, Yusuke Koda, Norichika Ohmi, Hiroshi Harada (KU) SRW2023-62
Abstract (in Japanese) (See Japanese page) 
(in English) Sub-Terahertz (THz) communication has been attracting attention due to its ability to utilize broad bandwidth, enabling low-latency and high-bitrate communication. Towards realizing sub-THz communication, the usage of directional antennas is considered. In order to evaluate such directional communication systems via link-level simulation, statistical modeling of multi-path propagation including temporal and spatial characteristics is required. To fulfill the requirement, measurements of the power angular delay profile (PADP) should be conducted by leveraging rotatable directional antennas and measuring the power delay profile (PDP) for each antenna rotation angle. Generally, PDAPs should be formed by the PDPs with the common time axes to allow the comparison between paths observed in different angles in terms of propagation delay time. However, this requires hardware synchronization such as wired connection or clock synchronization, which may harm the flexibility of the measurements. In this report, we propose a time alignment method of PADP without the use of hardware synchronization and evaluate the time alignment accuracy by 105 GHz-band measurement in the indoor personal desktop environment. The measurement result is evaluated by the comparison to the measurement with hardware synchronization via a wired connection between the transmitter and receiver.
Keyword (in Japanese) (See Japanese page) 
(in English) Sub-THz communication / multipath propagation measurement / power angular delay profile / 105 GHz / time synchronization / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 436, SRW2023-62, pp. 84-89, March 2024.
Paper # SRW2023-62 
Date of Issue 2024-03-06 (SRW) 
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 SRW2023-62

Conference Information
Committee RCS SR SRW  
Conference Date 2024-03-13 - 2024-03-15 
Place (in Japanese) (See Japanese page) 
Place (in English) The University of Tokyo (Hongo Campus), and online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Communication Workshop 
Paper Information
Registration To SRW 
Conference Code 2024-03-RCS-SR-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Time-alignment Method of Multiple Power Delay Profiles Measured by Antenna Rotations Towards Flexible Terahertz Channel Measurements 
Sub Title (in English)  
Keyword(1) Sub-THz communication  
Keyword(2) multipath propagation measurement  
Keyword(3) power angular delay profile  
Keyword(4) 105 GHz  
Keyword(5) time synchronization  
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1st Author's Name Hiroaki Endo  
1st Author's Affiliation Kyoto University (KU)
2nd Author's Name Yusuke Koda  
2nd Author's Affiliation Kyoto University (KU)
3rd Author's Name Norichika Ohmi  
3rd Author's Affiliation Kyoto University (KU)
4th Author's Name Hiroshi Harada  
4th Author's Affiliation Kyoto University (KU)
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Speaker Author-2 
Date Time 2024-03-14 11:20:00 
Presentation Time 25 minutes 
Registration for SRW 
Paper # SRW2023-62 
Volume (vol) vol.123 
Number (no) no.436 
Page pp.84-89 
#Pages 6 
Date of Issue 2024-03-06 (SRW) 

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