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Paper Abstract and Keywords
Presentation 2019-01-28 13:50
Wireless Power Transfer exploiting Multi-user Diversity for Wireless Powered Sensor Networks
Shinsuke Tanaka, Hiroyuki Yomo (Kansai Univ.) ASN2018-78
Abstract (in Japanese) (See Japanese page) 
(in English) In order to realize battery-less wireless sensor networks, WPSNs (Wireless Powered Sensor Networks) are actively studied. In our study, we focus on a WPSN where a sink node operating with battery collects data from sensor nodes and transfers power by electromagnetic wave to sensor nodes. When the sink conducts power transfer regardless of channel state of each node over fading channels, battery energy of the sink is used inefficiently since the sink can conduct power transfer over poor channels. Therefore, we consider exploiting multi-user diversity. However, when the sink always conducts power transfer over good channels, fairness among nodes is degraded, and the residual energy of farther nodes runs out quickly since they have less opportunities to be charged. Therefore, in this study, we propose power transfer considering fairness and residual energy while exploiting multi-user diversity. The proposed scheme realizes improvement of sustainability of high data collection rate by considering the amount of harvested energy over the past period, residual energy of each node, and distance to the sink for controlling charging opportunity. With computer simulations, we show that the proposed scheme can maintain high data collection rate for longer period of time in comparison to power transfer without considering channel state.
Keyword (in Japanese) (See Japanese page) 
(in English) Wireless sensor networks / Wireless power transfer / Multi-user Diversity / Energy saving / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 428, ASN2018-78, pp. 1-6, Jan. 2019.
Paper # ASN2018-78 
Date of Issue 2019-01-21 (ASN) 
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 ASN  
Conference Date 2019-01-28 - 2019-01-29 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyuukamura Ibusuki 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Ambient intelligence, Sensor networks, Poster session, etc. 
Paper Information
Registration To ASN 
Conference Code 2019-01-ASN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Wireless Power Transfer exploiting Multi-user Diversity for Wireless Powered Sensor Networks 
Sub Title (in English)  
Keyword(1) Wireless sensor networks  
Keyword(2) Wireless power transfer  
Keyword(3) Multi-user Diversity  
Keyword(4) Energy saving  
1st Author's Name Shinsuke Tanaka  
1st Author's Affiliation Kansai University (Kansai Univ.)
2nd Author's Name Hiroyuki Yomo  
2nd Author's Affiliation Kansai University (Kansai Univ.)
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Date Time 2019-01-28 13:50:00 
Presentation Time 25 
Registration for ASN 
Paper # IEICE-ASN2018-78 
Volume (vol) IEICE-118 
Number (no) no.428 
Page pp.1-6 
#Pages IEICE-6 
Date of Issue IEICE-ASN-2019-01-21 

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