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Paper Abstract and Keywords
Presentation 2010-07-29 14:00
Evaluation of Required Bit Resolution for Digital-Analog-Converter in Optical OFDM Signal Generation
Hidenori Takahashi, Itsuro Morita, Hideaki Tanaka (KDDI Labs) OCS2010-27
Abstract (in Japanese) (See Japanese page) 
(in English) The required bit resolution of digital-analog-converter (DAC) for optical OFDM was evaluated through simulation and experiment. We found that the signal degradation caused by quantization depends on the number of subcarriers theoretically, but the other noise generated in experiment suppresses the dependency. Additionally, signal degradation caused by quantization is independent of subcarrier modulation, and the performance improvement saturates with increasing bit resolution. With the criteria for the BER of 1x10-3, the required DAC resolution by simulation with ideal analog-digital-converter at receiver is 3 bits for QPSK, 4 bits for 8-QAM and 5 bits for 16-QAM and 32-QAM.
Keyword (in Japanese) (See Japanese page) 
(in English) Optical OFDM / Digital-Analog-Converter / Resolution / / / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 152, OCS2010-27, pp. 17-21, July 2010.
Paper # OCS2010-27 
Date of Issue 2010-07-22 (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)
Download PDF OCS2010-27

Conference Information
Committee OCS  
Conference Date 2010-07-29 - 2010-07-29 
Place (in Japanese) (See Japanese page) 
Place (in English) New Welcity Yugawara 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Optical modulation format, Multi-level optical modulation, Coherent optical communication, Optical amplifier/repeater technology, Nonlinerity and polarization issue, Dispersion compensating device, Optical signal processing, Optical measurement equipment, Digital signal processing for optical communication, optical communicaton measurement, LSI for optical communication, Error correction, etc. 
Paper Information
Registration To OCS 
Conference Code 2010-07-OCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Evaluation of Required Bit Resolution for Digital-Analog-Converter in Optical OFDM Signal Generation 
Sub Title (in English)  
Keyword(1) Optical OFDM  
Keyword(2) Digital-Analog-Converter  
Keyword(3) Resolution  
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1st Author's Name Hidenori Takahashi  
1st Author's Affiliation KDDI R&D Laboratories Inc. (KDDI Labs)
2nd Author's Name Itsuro Morita  
2nd Author's Affiliation KDDI R&D Laboratories Inc. (KDDI Labs)
3rd Author's Name Hideaki Tanaka  
3rd Author's Affiliation KDDI R&D Laboratories Inc. (KDDI Labs)
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Speaker Author-1 
Date Time 2010-07-29 14:00:00 
Presentation Time 25 minutes 
Registration for OCS 
Paper # OCS2010-27 
Volume (vol) vol.110 
Number (no) no.152 
Page pp.17-21 
#Pages 5 
Date of Issue 2010-07-22 (OCS) 

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