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Paper Abstract and Keywords
Presentation 2009-12-18 14:50
Spectrum Properties of DFTS-OFDM Transmission with Nonlinear Distortion
Yuichiro Fukuda, Shigeru Tomisato, Masaharu Hata (Okayama Univ.), Hiromasa Fujii, Takahiro Asai, Yukihiko Okumura (NTTDOCOMO) RCS2009-195
Abstract (in Japanese) (See Japanese page) 
(in English) This paper evaluates spectrum property of DFTS-OFDM transmission with non-linear distortion of a transmission power amplifier by computer simulations. N-times DFTS-OFDM transmission, which uses plural DFTs, and Clustered DFTS-OFDM transmission, in which DFT output signals are divided into plural clusters, are used in the simulations. The simulation results show that the PAPR of N-times DFTS-OFDM transmission with four DFTs increases by 2.0dB at the maximum compared with that with one DFT. In Clustered DFTS-OFDM transmission with four clusters, the maximum PAPR increase is 1.4dB. Although the out-of-band distortion power ratio with the input back-off value of 4dB is -30dB in both transmission systems, the devised sub-carrier mapping can reduce the occupied bandwidth of the distortion power. Clustered DFTS-OFDM transmission can especially reduce in-band distortion power by 5dB compared with N-times DFTS-OFDM transmission.
Keyword (in Japanese) (See Japanese page) 
(in English) OFDM / OFDMA / DFTS-OFDM / Nonlinear Distortion / PAPR / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 341, RCS2009-195, pp. 167-172, Dec. 2009.
Paper # RCS2009-195 
Date of Issue 2009-12-10 (RCS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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 RCS SAT  
Conference Date 2009-12-17 - 2009-12-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Satellite Communications, Broadcasting, Forward Error Correction, Wireless Communication Systems, etc. 
Paper Information
Registration To RCS 
Conference Code 2009-12-RCS-SAT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Spectrum Properties of DFTS-OFDM Transmission with Nonlinear Distortion 
Sub Title (in English)  
Keyword(1) OFDM  
Keyword(2) OFDMA  
Keyword(3) DFTS-OFDM  
Keyword(4) Nonlinear Distortion  
Keyword(5) PAPR  
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1st Author's Name Yuichiro Fukuda  
1st Author's Affiliation Okayama University (Okayama Univ.)
2nd Author's Name Shigeru Tomisato  
2nd Author's Affiliation Okayama University (Okayama Univ.)
3rd Author's Name Masaharu Hata  
3rd Author's Affiliation Okayama University (Okayama Univ.)
4th Author's Name Hiromasa Fujii  
4th Author's Affiliation NTT DOCOMO, INC. (NTTDOCOMO)
5th Author's Name Takahiro Asai  
5th Author's Affiliation NTT DOCOMO, INC. (NTTDOCOMO)
6th Author's Name Yukihiko Okumura  
6th Author's Affiliation NTT DOCOMO, INC. (NTTDOCOMO)
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Speaker Author-1 
Date Time 2009-12-18 14:50:00 
Presentation Time 20 minutes 
Registration for RCS 
Paper # RCS2009-195 
Volume (vol) vol.109 
Number (no) no.341 
Page pp.167-172 
#Pages
Date of Issue 2009-12-10 (RCS) 


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