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Paper Abstract and Keywords
Presentation 2023-06-15 16:00
Noise-Assisted Relaxation of Nonlinearity: A Basic Theoretical Study
Kazuki Komatsu (Toyohashi Univ. of Tech.), Yuichi Miyaji (Aichi Inst. of Tech.), Hideyuki Uehara (Toyohashi Univ. of Tech.) RCS2023-60
Abstract (in Japanese) (See Japanese page) 
(in English) In communication systems using one-bit quantizers, a phenomenon called dithering or stochastic resonance, which can suppress quantization errors by adding noise to the desired signal, has been reported.
Regarding this phenomenon, theoretical and experimental studies have been reported for single-carrier signals, and also experimental studies have been reported for multi-carrier signals such as orthogonal frequency division multiplexing (OFDM).
In this report, we extend the study target to general memoryless nonlinear functions by using the two-dimensional Fourier-Laguerre series expansion, and theoretically analyze the characteristics of the nonlinear element for the input signal of the weak stationary process in which the complex envelope has the complex normal distribution.
As a result of theoretical analysis, it is shown that arbitrary memoryless nonlinearity except for the mirror image component can be relaxed by adding wide-band noise to the desired signal.
In addition, taking an OFDM receiver using one-bit quantizers as an example, we compare the theoretical analysis with the simulation from the viewpoint of power spectral density and bit error rate, and show that the derived theoretical analysis results are valid.
Keyword (in Japanese) (See Japanese page) 
(in English) Nonlinearity / Stochastic Resonance / Theoretical Analysis / / / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 76, RCS2023-60, pp. 188-193, June 2023.
Paper # RCS2023-60 
Date of Issue 2023-06-07 (RCS) 
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 RCS2023-60

Conference Information
Committee RCS  
Conference Date 2023-06-14 - 2023-06-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Hokkaido University, and online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) First Presentation in IEICE Technical Committee, Resource Control, Scheduling, Wireless Communications, etc. 
Paper Information
Registration To RCS 
Conference Code 2023-06-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Noise-Assisted Relaxation of Nonlinearity: A Basic Theoretical Study 
Sub Title (in English)  
Keyword(1) Nonlinearity  
Keyword(2) Stochastic Resonance  
Keyword(3) Theoretical Analysis  
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1st Author's Name Kazuki Komatsu  
1st Author's Affiliation Toyohashi University of Technology (Toyohashi Univ. of Tech.)
2nd Author's Name Yuichi Miyaji  
2nd Author's Affiliation Aichi Institute of Technology (Aichi Inst. of Tech.)
3rd Author's Name Hideyuki Uehara  
3rd Author's Affiliation Toyohashi University of Technology (Toyohashi Univ. of Tech.)
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Speaker Author-1 
Date Time 2023-06-15 16:00:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # RCS2023-60 
Volume (vol) vol.123 
Number (no) no.76 
Page pp.188-193 
#Pages 6 
Date of Issue 2023-06-07 (RCS) 

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