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Paper Abstract and Keywords
Presentation 2017-03-03 13:40
Performance evaluation of a two-stage scheduling to improve capacity for inter-concentrator communication in hierarchical wireless sensor networks
Yuriko Yoshino, Masafumi Hashimoto, Naoki Wakamiya (Osaka Univ.) IN2016-157
Abstract (in Japanese) (See Japanese page) 
(in English) In this report, we focus on two-layer wireless sensor networks~(WSNs) that consist of sensor-concentrator and inter-concentrator networks.
In order to collect as much data as possible from a wide area, the improvement of network capacity is an essential because data collection applications often require to gather data within a limited period, i.e., acceptable collection delay.
Therefore, we have proposed a two-stage scheduling method for inter-concentrator networks.
The proposed method first strictly schedules time slots of links with heavy interference and congestion by exploiting the combination metric of interference and traffic demand.
After that, it simply schedule time slots of the remain sinks to mitigate complexity.
In this report, we evaluate capacity improvement of our proposal in various topologies with different node density and congestion degree.
Through simulation-based evaluations, our proposal achieves large improvement of the capacity compared with conventional scheduling algorithms.
In particular, our proposal improves up to 70% capacity compared with the conventional methods in situations where the proportion of one- and two-hop links is small.
Keyword (in Japanese) (See Japanese page) 
(in English) Wireless sensor networks / Inter-concentrator communication / TDMA-based scheduling / Capacity / / / /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 485, IN2016-157, pp. 359-364, March 2017.
Paper # IN2016-157 
Date of Issue 2017-02-23 (IN) 
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 NS IN  
Conference Date 2017-03-02 - 2017-03-03 
Place (in Japanese) (See Japanese page) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General 
Paper Information
Registration To IN 
Conference Code 2017-03-NS-IN 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Performance evaluation of a two-stage scheduling to improve capacity for inter-concentrator communication in hierarchical wireless sensor networks 
Sub Title (in English)  
Keyword(1) Wireless sensor networks  
Keyword(2) Inter-concentrator communication  
Keyword(3) TDMA-based scheduling  
Keyword(4) Capacity  
1st Author's Name Yuriko Yoshino  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Masafumi Hashimoto  
2nd Author's Affiliation Osaka University (Osaka Univ.)
3rd Author's Name Naoki Wakamiya  
3rd Author's Affiliation Osaka University (Osaka Univ.)
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Speaker Author-1 
Date Time 2017-03-03 13:40:00 
Presentation Time 20 minutes 
Registration for IN 
Paper # IN2016-157 
Volume (vol) vol.116 
Number (no) no.485 
Page pp.359-364 
Date of Issue 2017-02-23 (IN) 

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