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Paper Abstract and Keywords
Presentation 2016-03-04 11:40
Exploiting Surplus Energy for Cooperative Relaying in Sensor Networks using Wireless Power Transfer
Masashi Kunikawa, Hiroyuki Yomo (Kansai Univ.) NS2015-223
Abstract (in Japanese) (See Japanese page) 
(in English) Wireless Power Transfer-based Sensor Networks (WPT-SNs) are being actively studied in order to realize battery-less wireless sensor networks.
A WPT-SN consists of a sink that gathers sensing information and emits energy, and nodes that exploit the transfered energy for data communications.
However, nodes with the large distance to the sink have lower transfered energy due to larger propagation loss, which causes the required charging time for data communications to increase.
The larger charging time leads to higher energy consumption of the sink and lower network throughput.
In this paper, in order to decrease the charging time, we attempt to decrease the operating energy of each node by decreasing the transmission power of each data transmission.
The smaller transmission power can result in worse packet delivery rate, therefore, we propose cooperative relaying exploiting surplus energy of nodes located within close proximity of the sink.
The proposed scheme orders nodes according to their distances to the sink, and their transmissions are scheduled in such a way that nodes with larger distances transmit their data first.
The data is broadcasted, and nodes that have surplus energy and successfully overhear packets lost at the sink forward them upon request.
With computer simulations, we show that the proposed scheme can shorten the required charging time, i.e., the duration of power transfer to realize high packet collection rate in comparison to the direct transmission scheme without relaying.
Keyword (in Japanese) (See Japanese page) 
(in English) Sensor network / Wireless power transfer / Cooperative relaying / Energy Saving / / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 483, NS2015-223, pp. 317-322, March 2016.
Paper # NS2015-223 
Date of Issue 2016-02-25 (NS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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 NS IN  
Conference Date 2016-03-03 - 2016-03-04 
Place (in Japanese) (See Japanese page) 
Place (in English) Phoenix Seagaia Resort 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General 
Paper Information
Registration To NS 
Conference Code 2016-03-NS-IN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Exploiting Surplus Energy for Cooperative Relaying in Sensor Networks using Wireless Power Transfer 
Sub Title (in English)  
Keyword(1) Sensor network  
Keyword(2) Wireless power transfer  
Keyword(3) Cooperative relaying  
Keyword(4) Energy Saving  
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1st Author's Name Masashi Kunikawa  
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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Speaker Author-1 
Date Time 2016-03-04 11:40:00 
Presentation Time 20 minutes 
Registration for NS 
Paper # NS2015-223 
Volume (vol) vol.115 
Number (no) no.483 
Page pp.317-322 
#Pages
Date of Issue 2016-02-25 (NS) 


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