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Paper Abstract and Keywords
Presentation 2009-06-25 13:40
Out-of-band distortion power reduction by soft-clipping for wireless OFDMA systems
Toshihisa Fujiwara, Shigeru Tomisato, Masaharu Hata (Okayama Univ.), Hiromasa Fujii, Takahiro Asai, Yukihiko Okumura (NTTDOCOMO) RCS2009-29
Abstract (in Japanese) (See Japanese page) 
(in English) This paper proposes an adaptive control method for soft clipping which is one of effective peak power reduction methods in Orthogonal Frequency Division Multiple Access (OFDMA) systems. The proposed method can control in-band and out-of-band distortion power according to the using rate of the system band and the required transmission quality. The out-of-band distortion power with soft clipping can be reduced by 6dB compared with hard clipping. The simulation results show that a low-distortion OFDMA transmitter can be realize with reasonable computational complexity because iterative processing is unnecessary.
Keyword (in Japanese) (See Japanese page) 
(in English) OFDM / OFDMA / PAPR / Soft clipping / Out-of-band radiation / Spectrum sharing / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 105, RCS2009-29, pp. 13-16, June 2009.
Paper # RCS2009-29 
Date of Issue 2009-06-18 (RCS) 
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 RCS2009-29

Conference Information
Committee RCS  
Conference Date 2009-06-25 - 2009-06-26 
Place (in Japanese) (See Japanese page) 
Place (in English) Nagoya University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) First Presentation in IEICE Technical Committee, Railroad Communications, Inter-Vehicle Communications, Road to Vehicle Communications, Resource Control, Scheduling, Wireless Communication Systems, etc. 
Paper Information
Registration To RCS 
Conference Code 2009-06-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Out-of-band distortion power reduction by soft-clipping for wireless OFDMA systems 
Sub Title (in English)  
Keyword(1) OFDM  
Keyword(2) OFDMA  
Keyword(3) PAPR  
Keyword(4) Soft clipping  
Keyword(5) Out-of-band radiation  
Keyword(6) Spectrum sharing  
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Keyword(8)  
1st Author's Name Toshihisa Fujiwara  
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 NTTDOCOMO, Inc. (NTTDOCOMO)
5th Author's Name Takahiro Asai  
5th Author's Affiliation NTTDOCOMO, Inc. (NTTDOCOMO)
6th Author's Name Yukihiko Okumura  
6th Author's Affiliation NTTDOCOMO, Inc. (NTTDOCOMO)
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Speaker Author-1 
Date Time 2009-06-25 13:40:00 
Presentation Time 20 minutes 
Registration for RCS 
Paper # RCS2009-29 
Volume (vol) vol.109 
Number (no) no.105 
Page pp.13-16 
#Pages 4 
Date of Issue 2009-06-18 (RCS) 

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