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Paper Abstract and Keywords
Presentation 2026-01-15 14:30
Noise Tolerance Evaluation of Bandpass-Optical Delta-Sigma Modulation Circuit for D-RoF Systems
Kentaro Okada, Daisuke Hisano (UOsaka), Michiya Hayama, Junya Nishioka (Mitsubishi Electric), Ken Mishina (UOsaka), Keita Mochizuki (Mitsubishi Electric), Akihiro Maruta (UOsaka) CS2025-65
Abstract (in Japanese) (See Japanese page) 
(in English) The utilization of delta-sigma modulators (DSMs) is being investigated as a fronthaul configuration method for 5G/6G. While D-RoF systems using DSMs enable direct RF signal conversion without a frequency converter, D-RoF systems face the challenge of high power consumption. We have proposed a bandpass optical DSM (BP-ODSM) that leverages the advantages of DSMs while achieving low power consumption and high noise tolerance. This paper reports simulation results evaluating the impact of additive white Gaussian noise (AWGN) channel and receiver threshold decision on signal quality, along with comparative performance analysis against A-RoF systems.
Keyword (in Japanese) (See Japanese page) 
(in English) Radio over fiber / Delta-sigma modulation / fronthaul / optical circuit / / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 315, CS2025-65, pp. 41-46, Jan. 2026.
Paper # CS2025-65 
Date of Issue 2026-01-08 (CS) 
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 CS2025-65

Conference Information
Committee OCS CS  
Conference Date 2026-01-15 - 2026-01-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Hakodate Chamber of Commerce and Industry 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To CS 
Conference Code 2026-01-OCS-CS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Noise Tolerance Evaluation of Bandpass-Optical Delta-Sigma Modulation Circuit for D-RoF Systems 
Sub Title (in English)  
Keyword(1) Radio over fiber  
Keyword(2) Delta-sigma modulation  
Keyword(3) fronthaul  
Keyword(4) optical circuit  
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1st Author's Name Kentaro Okada  
1st Author's Affiliation The University of Osaka (UOsaka)
2nd Author's Name Daisuke Hisano  
2nd Author's Affiliation The University of Osaka (UOsaka)
3rd Author's Name Michiya Hayama  
3rd Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
4th Author's Name Junya Nishioka  
4th Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
5th Author's Name Ken Mishina  
5th Author's Affiliation The University of Osaka (UOsaka)
6th Author's Name Keita Mochizuki  
6th Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
7th Author's Name Akihiro Maruta  
7th Author's Affiliation The University of Osaka (UOsaka)
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Speaker Author-1 
Date Time 2026-01-15 14:30:00 
Presentation Time 25 minutes 
Registration for CS 
Paper # CS2025-65 
Volume (vol) vol.125 
Number (no) no.315 
Page pp.41-46 
#Pages 6 
Date of Issue 2026-01-08 (CS) 

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