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Paper Abstract and Keywords
Presentation 2015-12-18 10:00
Adjacent channel interference performance improvement by weighted averaging technique for overlap FFT filter-bank
Motohiro Tanabe, Akira Saito, Masahiro Umehira, Shigeki Takeda (Ibaraki Univ.) RCS2015-262
Abstract (in Japanese) (See Japanese page) 
(in English) The authors have been proposing a single-carrier modulation based wireless access scheme using overlap FFT filter-bank to enable flexible utilization of non-contiguous unused spectrum. As narrowband signal and wideband signals are transmitted from multiple wireless terminals, it is expected to improve adjacent channel leakage power (ACLP)/adjacent channel interference (ACI) performance for more flexible spectrum utilization. The authors reported ACI performance of the overlap FFT filter-bank can be improved by windowing technique and ACI performance is degraded due to discontinuous impulse response when connecting two successive waveform of two FFT/IFFT blocks. In order to solve this problem, this report proposes weighting and averaging technique to improve ACI performance for the overlap FFT filter-bank in combination with windowing technique. Computer simulation results confirm the proposed technique can improve ACI performance.
Keyword (in Japanese) (See Japanese page) 
(in English) Overlap FFT / Filter-bank / Windowing / Weighted averaging / Adjacent channel Interference / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 369, RCS2015-262, pp. 109-114, Dec. 2015.
Paper # RCS2015-262 
Date of Issue 2015-12-10 (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 RCS2015-262

Conference Information
Committee NS RCS  
Conference Date 2015-12-17 - 2015-12-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Matsuyama Community Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Ad-hoc Network, Ubiquitous Network, Wireless Communication, security, Multi-Access Network 
Paper Information
Registration To RCS 
Conference Code 2015-12-NS-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Adjacent channel interference performance improvement by weighted averaging technique for overlap FFT filter-bank 
Sub Title (in English)  
Keyword(1) Overlap FFT  
Keyword(2) Filter-bank  
Keyword(3) Windowing  
Keyword(4) Weighted averaging  
Keyword(5) Adjacent channel Interference  
Keyword(6)  
Keyword(7)  
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1st Author's Name Motohiro Tanabe  
1st Author's Affiliation Ibaraki University (Ibaraki Univ.)
2nd Author's Name Akira Saito  
2nd Author's Affiliation Ibaraki University (Ibaraki Univ.)
3rd Author's Name Masahiro Umehira  
3rd Author's Affiliation Ibaraki University (Ibaraki Univ.)
4th Author's Name Shigeki Takeda  
4th Author's Affiliation Ibaraki University (Ibaraki Univ.)
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Speaker Author-1 
Date Time 2015-12-18 10:00:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # RCS2015-262 
Volume (vol) vol.115 
Number (no) no.369 
Page pp.109-114 
#Pages 6 
Date of Issue 2015-12-10 (RCS) 

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