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Paper Abstract and Keywords
Presentation 2025-06-13 13:55
Joint Optimization of Transmission Parameters in Single-Carrier Systems with Band-Limited Analog Front-End Constraints
Shun Ishihara (TUAT), Minoru Fujishima, Suguru Kameda (Hiroshima Univ.), Kosuke Katayama (NITTC), Janne Lehtomaki, Nuutti Tervo (UOO), Kenta Umebayashi (TUAT) SRW2025-9 MWPTHz2025-9
Abstract (in Japanese) (See Japanese page) 
(in English) This paper investigates a single-carrier system using Tomlinson–Harashima precoding (THP) to mitigate inter-symbol interference (ISI) caused by a band-limited analog front end. Unlike conventional studies that fix pre-equalization settings, our approach jointly optimizes both the parameter of ISI cancellation and the signal parameters, including signal bandwidth and modulation order. Channel capacity simulations show that this multi parameter optimization achieves higher performance than fixed configurations used in the literature. In addition, we analyze how residual interference, noise sensitivity, signal bandwidth, and modulation order affect capacity, and clarify the role of each parameter. We find that maximizing signal bandwidth is not always optimal: in certain SNR regimes, reducing bandwidth to suppress ISI can improve capacity even if bandwidth is not maximized. Furthermore, the results indicate that partially cancelling ISI, rather than removing it completely, can be preferable at low SNR, since excessive ISI cancellation using THP may degrade noise robustness.
Keyword (in Japanese) (See Japanese page) 
(in English) Tomlinson-Harashima Precoding / Inter-Symbol Interference / Parameter optimization / Channel capacity / / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 73, MWPTHz2025-9, pp. 46-49, June 2025.
Paper # MWPTHz2025-9 
Date of Issue 2025-06-06 (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 SRW2025-9 MWPTHz2025-9

Conference Information
Committee SRW MWPTHz  
Conference Date 2025-06-13 - 2025-06-13 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English) MWPTHz, WLAN, WPAN, Ad-hoc, mmWave, etc. 
Paper Information
Registration To MWPTHz 
Conference Code 2025-06-SRW-MWPTHz 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Joint Optimization of Transmission Parameters in Single-Carrier Systems with Band-Limited Analog Front-End Constraints 
Sub Title (in English)  
Keyword(1) Tomlinson-Harashima Precoding  
Keyword(2) Inter-Symbol Interference  
Keyword(3) Parameter optimization  
Keyword(4) Channel capacity  
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1st Author's Name Shun Ishihara  
1st Author's Affiliation Tokyo University of Agriculture and Technology (TUAT)
2nd Author's Name Minoru Fujishima  
2nd Author's Affiliation Hiroshima University (Hiroshima Univ.)
3rd Author's Name Suguru Kameda  
3rd Author's Affiliation Hiroshima University (Hiroshima Univ.)
4th Author's Name Kosuke Katayama  
4th Author's Affiliation National Institute of Technology, Tokuyama College (NITTC)
5th Author's Name Janne Lehtomaki  
5th Author's Affiliation University of Oulu (UOO)
6th Author's Name Nuutti Tervo  
6th Author's Affiliation University of Oulu (UOO)
7th Author's Name Kenta Umebayashi  
7th Author's Affiliation Tokyo University of Agriculture and Technology (TUAT)
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Speaker Author-1 
Date Time 2025-06-13 13:55:00 
Presentation Time 20 minutes 
Registration for MWPTHz 
Paper # SRW2025-9, MWPTHz2025-9 
Volume (vol) vol.125 
Number (no) no.72(SRW), no.73(MWPTHz) 
Page pp.46-49 
#Pages 4 
Date of Issue 2025-06-06 (SRW, MWPTHz) 

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