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Paper Abstract and Keywords
Presentation 2019-11-05 15:00
Centralized/autonomous hybrid channel selection for multi-hop vital data collections from a large number of exercisers
Ryohei Ogawa, Hiroyuki Yomo (Kansai Univ.), Takuma Hamagami, Kentaro Yanagihara, Yasutaka Kawamoto (OKI), Shinsuke Hara (Osaka City Univ.), Takashi Kawabata (Kansai Univ.) MICT2019-34 MI2019-61
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we focus on a system that collects vital data by WSN (Wireless Sensor Networks) from sensor nodes attached to a large number of exercisers.
For increasing the number of supported nodes with WSN, it is necessary to utilize multi-channel communications, which can suppress the number of operating nodes per channel.
However, in data transmissions using multi-channel communications, the reduction of operating nodes at each channel can increase the number of isolated nodes that have no neighboring node within their communication ranges.
Therefore, a protocol called ACS-MAP has been proposed, which suppresses the duration for each node to be in isolated state by introducing autonomous channel selection and switch of isolated nodes.
However, in ACS-MAP, the difference of the number of nodes with data transmissions in each channel becomes large depending on the distribution of nodes over each channel.
In this paper, in order to solve this problem, we introduce a centralized operation to change the assigned channel of selected nodes considering the distribution of node locations.
With computer simulations, we investigate the effectiveness of the proposed method.
Keyword (in Japanese) (See Japanese page) 
(in English) WSN / Vital data Monitoring / Multi-hop and Multi-channel communications / / / / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 263, MICT2019-34, pp. 45-50, Nov. 2019.
Paper # MICT2019-34 
Date of Issue 2019-10-29 (MICT, MI) 
ISSN 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 MICT2019-34 MI2019-61

Conference Information
Committee MI MICT  
Conference Date 2019-11-05 - 2019-11-05 
Place (in Japanese) (See Japanese page) 
Place (in English) Univ. of Tsukuba 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Medical imaging technology, healthcare and medical information communication technology 
Paper Information
Registration To MICT 
Conference Code 2019-11-MI-MICT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Centralized/autonomous hybrid channel selection for multi-hop vital data collections from a large number of exercisers 
Sub Title (in English)  
Keyword(1) WSN  
Keyword(2) Vital data Monitoring  
Keyword(3) Multi-hop and Multi-channel communications  
1st Author's Name Ryohei Ogawa  
1st Author's Affiliation Kansai University (Kansai Univ.)
2nd Author's Name Hiroyuki Yomo  
2nd Author's Affiliation Kansai University (Kansai Univ.)
3rd Author's Name Takuma Hamagami  
3rd Author's Affiliation Oki Electric Industry Co., Ltd. (OKI)
4th Author's Name Kentaro Yanagihara  
4th Author's Affiliation Oki Electric Industry Co., Ltd. (OKI)
5th Author's Name Yasutaka Kawamoto  
5th Author's Affiliation Oki Electric Industry Co., Ltd. (OKI)
6th Author's Name Shinsuke Hara  
6th Author's Affiliation Osaka City University (Osaka City Univ.)
7th Author's Name Takashi Kawabata  
7th Author's Affiliation Kansai University (Kansai Univ.)
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Speaker Author-1 
Date Time 2019-11-05 15:00:00 
Presentation Time 20 minutes 
Registration for MICT 
Paper # MICT2019-34, MI2019-61 
Volume (vol) vol.119 
Number (no) no.263(MICT), no.264(MI) 
Page pp.45-50 
Date of Issue 2019-10-29 (MICT, MI) 

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