IEICE Technical Committee Submission System
Conference Paper's Information
Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2015-01-30 13:50
Welch FFT segment size selection method for Duty Cycle estimation
Hiroki Iwata, Kenta Umebayashi, Samuli Tiiro (TUAT), Janne Lehtomaki (Univ. of Oulu), Yasuo Suzuki (TUAT) SR2014-110
Abstract (in Japanese) (See Japanese page) 
(in English) In dynamic spectrum access (DSA) and the scenario with dynamic primary user (PU), spectrum sensing with reasonably low cost is very challenging due to the required detection accuracy and quickness which is used to detect the unused spectrum (White Space : WS) owned by PU. One possible approach to achieve the requirements is to use statistics regarding PU spectrum utilization in spectrum sensing. For this issue, it is necessary to develop a system for obtaining the statistical information, such as Duty Cycle (DC). In our previous work, DC estimation based on Welch FFT has been investigated. The DC estimation method requires the optimum segment size selection method for both estimation accuracy because there is a trade-off relationship between DC estimation accuracy and WS estimation accuracy with regard to the segment size of Welch FFT. In this paper, we show the optimum segment size depends on the signal-to-noise power ratio in frequency domain (SNRfreq). After that, in the environment where SNRfreq varies due to fading etc., we propose a segment size selection method which can adapt to the fluctuation of SNRfreq. In numerical simulation, we show that our proposed method achieve high WS estimation accuracy while any DC estimation accuracy.
Keyword (in Japanese) (See Japanese page) 
(in English) Dynamic spectrum access / Spectrum measurement / Duty Cycle / Welch FFT / / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 435, SR2014-110, pp. 101-108, Jan. 2015.
Paper # SR2014-110 
Date of Issue 2015-01-22 (SR) 
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 SR2014-110

Conference Information
Committee SR  
Conference Date 2015-01-29 - 2015-01-30 
Place (in Japanese) (See Japanese page) 
Place (in English) KKR Hakodate 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Cognitive Radio Network, Heterogeneous Network, Cross-layer Radio Technologies, SDN (Software Defined Network), etc. 
Paper Information
Registration To SR 
Conference Code 2015-01-SR 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Welch FFT segment size selection method for Duty Cycle estimation 
Sub Title (in English)  
Keyword(1) Dynamic spectrum access  
Keyword(2) Spectrum measurement  
Keyword(3) Duty Cycle  
Keyword(4) Welch FFT  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Hiroki Iwata  
1st Author's Affiliation Tokyo University of Agriculture and Technology (TUAT)
2nd Author's Name Kenta Umebayashi  
2nd Author's Affiliation Tokyo University of Agriculture and Technology (TUAT)
3rd Author's Name Samuli Tiiro  
3rd Author's Affiliation Tokyo University of Agriculture and Technology (TUAT)
4th Author's Name Janne Lehtomaki  
4th Author's Affiliation University of Oulu (Univ. of Oulu)
5th Author's Name Yasuo Suzuki  
5th Author's Affiliation Tokyo University of Agriculture and Technology (TUAT)
6th Author's Name  
6th Author's Affiliation ()
7th Author's Name  
7th Author's Affiliation ()
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
Speaker Author-1 
Date Time 2015-01-30 13:50:00 
Presentation Time 25 minutes 
Registration for SR 
Paper # SR2014-110 
Volume (vol) vol.114 
Number (no) no.435 
Page pp.101-108 
#Pages
Date of Issue 2015-01-22 (SR) 


[Return to Top Page]

[Return to IEICE Web Page]


The Institute of Electronics, Information and Communication Engineers (IEICE), Japan