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Paper Abstract and Keywords
Presentation 2017-11-23 15:25
A Study on EXIT Chart Based Design of Low-Density Parity-Check Codes for Iterative Soft Beat Interference Canceller in Pilot-Assisted Optical-OFDM
Noboru Osawa, Shinsuke Ibi, Koji Igarashi, Seiichi Sampei (Osaka Univ.) OCS2017-60
Abstract (in Japanese) (See Japanese page) 
(in English) This paper proposes a low density parity check (LDPC) code design based on extrinsic information transfer (EXIT) chart analysis for iterative soft beat interference canceller in pilot-assisted optical orthogonal frequency division multiplexing (OFDM) systems. Pilot-assisted optical-OFDM transmission is a linear demodulation schemes based on single photodiode. Although the complex baseband signal can be detected from direct detected amplitude, it could be impaired with the signal-signal beat interference. We have studied an iterative soft beat interference canceller with the assistance of forward error correction (FEC) to mitigate the interference, and revealed that a suitable FEC code is necessary for the iterative detection. In this paper, we focus on a design of LDPC codes which is well studied in terms of EXIT chart analysis, and design an LDPC code for the interference canceller.
The validity of the optimized LDPC code is demonstrated by computer simulations.
Keyword (in Japanese) (See Japanese page) 
(in English) Direct-Detection / Optical-OFDM / EXIT Chart Analysis / Iterative Detection / LDPC / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 322, OCS2017-60, pp. 17-22, Nov. 2017.
Paper # OCS2017-60 
Date of Issue 2017-11-16 (OCS) 
ISSN Print edition: ISSN 0913-5685    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)
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Conference Information
Committee OFT OCS IEE-CMN ITE-BCT  
Conference Date 2017-11-23 - 2017-11-24 
Place (in Japanese) (See Japanese page) 
Place (in English) Kansa-Univ. Umeda Campus 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To OCS 
Conference Code 2017-11-OFT-OCS-CMN-BCT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on EXIT Chart Based Design of Low-Density Parity-Check Codes for Iterative Soft Beat Interference Canceller in Pilot-Assisted Optical-OFDM 
Sub Title (in English)  
Keyword(1) Direct-Detection  
Keyword(2) Optical-OFDM  
Keyword(3) EXIT Chart Analysis  
Keyword(4) Iterative Detection  
Keyword(5) LDPC  
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Keyword(8)  
1st Author's Name Noboru Osawa  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Shinsuke Ibi  
2nd Author's Affiliation Osaka University (Osaka Univ.)
3rd Author's Name Koji Igarashi  
3rd Author's Affiliation Osaka University (Osaka Univ.)
4th Author's Name Seiichi Sampei  
4th Author's Affiliation Osaka University (Osaka Univ.)
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Speaker Author-1 
Date Time 2017-11-23 15:25:00 
Presentation Time 25 minutes 
Registration for OCS 
Paper # OCS2017-60 
Volume (vol) vol.117 
Number (no) no.322 
Page pp.17-22 
#Pages 6 
Date of Issue 2017-11-16 (OCS) 

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