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Presentation 2018-10-31 10:25
[Poster Presentation] Time Series Analysis of Multiple Primary Users by Cooperative Sensing based on SDAR Algorithm
Akihisa Abe, Yuya Aoki, Takeo Fujii (UEC) SR2018-80
Abstract (in Japanese) (See Japanese page) 
(in English) As a way to utilize the limited frequency resource efficiently, frequency sharing based on the spectrum database has been attracted attention. In the spectrum database, the high accuracy recognition of radio environment is achieved by statistically analyzing the radio environment information observed by wireless terminals of each location. However, in the conventional spectrum database, observation values are statistically analyzed without taking transition of the communication state of the primary user (PU) into consideration. Therefore, if the communication state of the PU varies with time, the error between the observed value and the statistical value becomes large, and the frequency sharing performance may deteriorate. Thus, in this paper, we propose the method to construct the spectrum database with considering PU state transition. Specifically, multiple PUs and secondary users (SUs) situation are considered, and the SUs observe the radio environment information by cooperative sensing and detect PUs’ states transitions by sequential discounting auto regressive (SDAR) algorithm. Based on the detection results, each SU estimates the channel utilization rates of PUs, the average duration of PUs’ ON / OFF, and the average received power value, then reports them to the spectrum database. By using the proposed method, we show that the PUs’ states transitions can be detected accurately and estimation error of received power value can be improved compared with the conventional spectrum database.
Keyword (in Japanese) (See Japanese page) 
(in English) Frequency Sharing / Spectrum Database / Sequential Discounting Auto Regressive / / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 274, SR2018-80, pp. 49-50, Oct. 2018.
Paper # SR2018-80 
Date of Issue 2018-10-23 (SR) 
ISSN 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 SR  
Conference Date 2018-10-30 - 2018-10-31 
Place (in Japanese) (See Japanese page) 
Place (in English) Mandarin Hotel, Bangkok, Thailand 
Topics (in Japanese) (See Japanese page) 
Topics (in English) SmartCom2018 
Paper Information
Registration To SR 
Conference Code 2018-10-SR 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Time Series Analysis of Multiple Primary Users by Cooperative Sensing based on SDAR Algorithm 
Sub Title (in English)  
Keyword(1) Frequency Sharing  
Keyword(2) Spectrum Database  
Keyword(3) Sequential Discounting Auto Regressive  
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1st Author's Name Akihisa Abe  
1st Author's Affiliation The University of Electro-Communications (UEC)
2nd Author's Name Yuya Aoki  
2nd Author's Affiliation The University of Electro-Communications (UEC)
3rd Author's Name Takeo Fujii  
3rd Author's Affiliation The University of Electro-Communications (UEC)
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Speaker Author-1 
Date Time 2018-10-31 10:25:00 
Presentation Time 60 minutes 
Registration for SR 
Paper # SR2018-80 
Volume (vol) vol.118 
Number (no) no.274 
Page pp.49-50 
#Pages
Date of Issue 2018-10-23 (SR) 


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