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Paper Abstract and Keywords
Presentation 2007-12-18 13:40
Performances of Non-Coherent Fractionally Spaced Rake Reception in DS-UWB Wireless Communications
Yasutomo Kawashima, Shigenobu Sasaki, Hisakazu Kikuchi (Niigata Univ.) WBS2007-51
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, performance of non-coherent Rake reception is investigated in M-ary code shift keying(M-ary CSK) ultra-wideband (UWB) wireless system which is one of the impulse radio-based UWB. Non-coherent Rake reception does not require channel estimation and weighted combining which are necessary in coherent Rake reception. Although it is expected to simplify the receiver structure, performance degradation is unavoidable. In this paper, fractionally spaced Rake (FSRake) concept is applied to the non-coherent Rake reception, which aims at more energy capture and path diversity effect. FSRake reception resolves multipath by oversampling received signal at faster sampling rate than chip rate, and combine them. Error rate performance is evaluated by computer simulation in consideration of different receiver front-end before Rake combining. We also propose a new non-coherent Rake reception by using selection combining of in-phase and quadrature components of matched filter outputs, and demonstrate that it is effective to improve the error rate performance.
Keyword (in Japanese) (See Japanese page) 
(in English) ultra-wideband / RAKE reception / non-coherent detection / fractional sampling / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 395, WBS2007-51, pp. 25-30, Dec. 2007.
Paper # WBS2007-51 
Date of Issue 2007-12-11 (WBS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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 2007-12-18 - 2007-12-19 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To WBS 
Conference Code 2007-12-WBS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Performances of Non-Coherent Fractionally Spaced Rake Reception in DS-UWB Wireless Communications 
Sub Title (in English)  
Keyword(1) ultra-wideband  
Keyword(2) RAKE reception  
Keyword(3) non-coherent detection  
Keyword(4) fractional sampling  
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1st Author's Name Yasutomo Kawashima  
1st Author's Affiliation Niigata University (Niigata Univ.)
2nd Author's Name Shigenobu Sasaki  
2nd Author's Affiliation Niigata University (Niigata Univ.)
3rd Author's Name Hisakazu Kikuchi  
3rd Author's Affiliation Niigata University (Niigata Univ.)
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Speaker Author-1 
Date Time 2007-12-18 13:40:00 
Presentation Time 25 minutes 
Registration for WBS 
Paper # WBS2007-51 
Volume (vol) vol.107 
Number (no) no.395 
Page pp.25-30 
#Pages 6 
Date of Issue 2007-12-11 (WBS) 

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