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Paper Abstract and Keywords
Presentation 2010-10-08 09:30
[Poster Presentation] Experimental Analysis of the Clipping and Filtering on the IEEE 802.11g Wireless LAN System
Taewoo Lee, Hideki Ochiai (YNU) WBS2010-31
Abstract (in Japanese) (See Japanese page) 
(in English) The IEEE 802.11g WLAN standard, which utilizes OFDM modulation, plays an important role in in-door wireless communications due to its high capacity and high speed. However, since OFDM signal consists of a sum of a number of subcarriers with random phase, it has a high peak-to-average power ratio (PAPR). Amplifying the signal with high PAPR by power amplifier (PA) either requires large back-off or causes nonlinear distortion. Operating PA with a large back-off results in penalty in terms of amplifier efficiency. On the other hand, out-of-band radiation associated with nonlinear distortion should comply with the spectral mask regulated by the standard. In this paper, we investigate the effect of clipping and filtering on the IEEE 802.11g system in view of improving amplifier efficiency and reveal its limitation. It is shown that if the transmission rate is low, the clipping and filtering improve the system, but it becomes less effective or it even degrades the performance as the transmission rate increases.
Keyword (in Japanese) (See Japanese page) 
(in English) Power amplifier / clipping and filtering / nonlinear distortion / OFDM / IEEE 802.11g / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 222, WBS2010-31, pp. 59-63, Oct. 2010.
Paper # WBS2010-31 
Date of Issue 2010-09-30 (WBS) 
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 WBS  
Conference Date 2010-10-07 - 2010-10-08 
Place (in Japanese) (See Japanese page) 
Place (in English) Naramachi Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To WBS 
Conference Code 2010-10-WBS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Experimental Analysis of the Clipping and Filtering on the IEEE 802.11g Wireless LAN System 
Sub Title (in English)  
Keyword(1) Power amplifier  
Keyword(2) clipping and filtering  
Keyword(3) nonlinear distortion  
Keyword(4) OFDM  
Keyword(5) IEEE 802.11g  
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1st Author's Name Taewoo Lee  
1st Author's Affiliation Yokohama National University (YNU)
2nd Author's Name Hideki Ochiai  
2nd Author's Affiliation Yokohama National University (YNU)
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Speaker Author-1 
Date Time 2010-10-08 09:30:00 
Presentation Time 150 minutes 
Registration for WBS 
Paper # WBS2010-31 
Volume (vol) vol.110 
Number (no) no.222 
Page pp.59-63 
#Pages 5 
Date of Issue 2010-09-30 (WBS) 

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