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Paper Abstract and Keywords
Presentation 2016-03-02 11:40
Design and Performance of an Extended Overlap FFT Filter-Bank for Flexible Spectrum Access
Akira Saito, Motohiro Tanabe, masahiro Umehira, Shigeki Takeda (Ibaraki Univ.) SR2015-95
Abstract (in Japanese) (See Japanese page) 
(in English) In the cognitive radio using the non-contiguous unused spectrum with different bandwidth, we need a multi-rate transmission scheme which is capable of transmitting and receiving multiple radio signals with an arbitrary bandwidth over multiple radio channels. As neighboring radio channels of the unused spectrum are used by primary users, it is required to reduce adjacent channel interference to adjacent primary users. This report proposes an extended overlap FFT filter-bank to reduce adjacent channel interference by extending the overlap part for FFT/IFFT processing from 1/4 block to 3/8 block, where FFT/IFFT block length does not need to be extended to reduce adjacent channel interference, thus processing delay is remained. Furthermore, this report describes design and performance of the proposed extended overlap FFT filter-bank and shows simulation results to confirm the improvement of adjacent channel interference.
Keyword (in Japanese) (See Japanese page) 
(in English) Cognitive Radio / Overlap FFT / Filter-Bank / Adjacent channel interference / / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 473, SR2015-95, pp. 41-46, March 2016.
Paper # SR2015-95 
Date of Issue 2016-02-24 (SR) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
Download PDF SR2015-95

Conference Information
Committee RCS CCS SR SRW  
Conference Date 2016-03-02 - 2016-03-04 
Place (in Japanese) (See Japanese page) 
Place (in English) Tokyo Institute of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Communication Workshop 
Paper Information
Registration To SR 
Conference Code 2016-03-RCS-CCS-SR-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Design and Performance of an Extended Overlap FFT Filter-Bank for Flexible Spectrum Access 
Sub Title (in English)  
Keyword(1) Cognitive Radio  
Keyword(2) Overlap FFT  
Keyword(3) Filter-Bank  
Keyword(4) Adjacent channel interference  
1st Author's Name Akira Saito  
1st Author's Affiliation Ibaraki University (Ibaraki Univ.)
2nd Author's Name Motohiro Tanabe  
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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Date Time 2016-03-02 11:40:00 
Presentation Time 25 
Registration for SR 
Paper # IEICE-SR2015-95 
Volume (vol) IEICE-115 
Number (no) no.473 
Page pp.41-46 
#Pages IEICE-6 
Date of Issue IEICE-SR-2016-02-24 

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