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Paper Abstract and Keywords
Presentation 2018-01-26 09:55
Time and frequency varying noise floor estimation for spectrum usage measurement
Hiroki Iwata, Kenta Umebayashi (TUAT), Janne Lehtomaki (UoO), Miguel Lopez-Benitez (UoL) SR2017-101
Abstract (in Japanese) (See Japanese page) 
(in English) For efficient spectrum sharing between heterogeneous wireless systems, statistical information regarding spectrum use by incumbent systems is useful. In this work, we suppose to estimate statistical information based on FFT-ED (Energy Detection based on FFT)-based spectrum measurement. In FFT-ED, noise floor has to be estimated to set a detection threshold appropriately. In general, noise floor has a frequency dependency and its level varies in time.
Therefore, we investigate a noise floor estimation considering the shape and level of the noise floor. Specifically, we propose a method which can estimate the noise floor level while performing spectrum measurement exploiting a prior information regarding the shape of noise floor and an outlier detection algorithm (FCME: Forward Mean Consecutive Mean Excision). We justify the proposed method by means of computer simulation and actual measurement.
Keyword (in Japanese) (See Japanese page) 
(in English) Noise Floor Estimation / Dynamic Spectrum Access / Smart Spectrum Access / Spectrum Measurement / / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 410, SR2017-101, pp. 43-50, Jan. 2018.
Paper # SR2017-101 
Date of Issue 2018-01-18 (SR) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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 SR  
Conference Date 2018-01-25 - 2018-01-26 
Place (in Japanese) (See Japanese page) 
Place (in English) Fukuoka univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) IoT, etc. 
Paper Information
Registration To SR 
Conference Code 2018-01-SR 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Time and frequency varying noise floor estimation for spectrum usage measurement 
Sub Title (in English)  
Keyword(1) Noise Floor Estimation  
Keyword(2) Dynamic Spectrum Access  
Keyword(3) Smart Spectrum Access  
Keyword(4) Spectrum Measurement  
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 Janne Lehtomaki  
3rd Author's Affiliation University of Oulu (UoO)
4th Author's Name Miguel Lopez-Benitez  
4th Author's Affiliation University of Liverpool (UoL)
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Speaker Author-1 
Date Time 2018-01-26 09:55:00 
Presentation Time 25 minutes 
Registration for SR 
Paper # SR2017-101 
Volume (vol) vol.117 
Number (no) no.410 
Page pp.43-50 
Date of Issue 2018-01-18 (SR) 

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