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Presentation 2019-05-29 15:30
[Poster Presentation] Power Transfer Scheduling Considering Channel State in Wireless Powered Sensor Networks
Tatsuya Ishida, Shinsuke Tanaka, Hiroyuki Yomo (Kansai Univ.) RCC2019-9 MICT2019-9
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 using electromagnetic wave to sensor nodes. If the sink conducts power transfer regardless of channel state of each node over time-varying channels, battery energy of the sink can be inefficiently used since the sink can conduct power transfer even when many nodes experience poor channels. Therefore, in this paper, we employ power transfer scheduling, in which power transfer is conducted only when many nodes can benefit from good channels in order to improve power transfer efficiency. However, with this scheduling, the sink does not conduct power transfer when only a part of nodes have good channel state, which prevents these nodes from exploiting better channels, thereby reducing their residual energy. In order to solve this problem, in this study, we propose power transfer scheduling which takes account of residual energy of each nodes while considering their channel states. The proposed scheme improves lifetime of buttery of sink while maintaining high data collection rate by controlling charging opportunities with the energy threshold of each node set based on their distance to sink with the consideration on their average link conditions. With computer simulations, we investigate the effectiveness of our proposed scheduling.
Keyword (in Japanese) (See Japanese page) 
(in English) Wireless sensor networks / Wireless power transfer / Time-varying channel / Energy saving / / / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 58, RCC2019-9, pp. 41-46, May 2019.
Paper # RCC2019-9 
Date of Issue 2019-05-22 (RCC, MICT) 
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)
Download PDF RCC2019-9 MICT2019-9

Conference Information
Committee RCC MICT  
Conference Date 2019-05-29 - 2019-05-30 
Place (in Japanese) (See Japanese page) 
Place (in English) TOKYO BIG SIGHT 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To RCC 
Conference Code 2019-05-RCC-MICT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Power Transfer Scheduling Considering Channel State in Wireless Powered Sensor Networks 
Sub Title (in English)  
Keyword(1) Wireless sensor networks  
Keyword(2) Wireless power transfer  
Keyword(3) Time-varying channel  
Keyword(4) Energy saving  
1st Author's Name Tatsuya Ishida  
1st Author's Affiliation Kansai University (Kansai Univ.)
2nd Author's Name Shinsuke Tanaka  
2nd Author's Affiliation Kansai University (Kansai Univ.)
3rd Author's Name Hiroyuki Yomo  
3rd Author's Affiliation Kansai University (Kansai Univ.)
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Date Time 2019-05-29 15:30:00 
Presentation Time 120 
Registration for RCC 
Paper # IEICE-RCC2019-9,IEICE-MICT2019-9 
Volume (vol) IEICE-119 
Number (no) no.58(RCC), no.59(MICT) 
Page pp.41-46 
#Pages IEICE-6 
Date of Issue IEICE-RCC-2019-05-22,IEICE-MICT-2019-05-22 

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