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Paper Abstract and Keywords
Presentation 2013-03-08 10:00
Dynamic Time Slot Assignment Scheme for Picture Transfer in Wireless Sensor Networks
Ryosuke Nagai, Shiro Sakata, Nobuyoshi Komuro (Chiba Univ) IN2012-211
Abstract (in Japanese) (See Japanese page) 
(in English) In wireless sensor networks (WSNs), the surveillance cameras for prevention of crimes and disasters have been deployed.
An increase in the packet collisions, however, causes an increase in delay and a decrease in the delivery ratio when emergency camera images which are larger capacity than usual are collected.
This is because communication speed of WSN is low, usually lower than 1Mbps, considering low energy consumption.
This paper proposes a new scheme which achieves the low latency in collecting image data in emergency for IEEE 802.15.4
beacon-enabled mode, which is a typical energy-efficient WSN protocol.
In this scheme, the network functions as an energy-efficient WSN in the normal period.
Time slots for image data collection are dynamically assigned using
sleep periods, and the image data is transmitted to the sink node as soon as image data is detected in the emergency
period.
Simulation results show that the proposed scheme is effective.
Keyword (in Japanese) (See Japanese page) 
(in English) Wireless Sensor Networks / TDMA / IEEE 802.15.4 Beacon Mode / Camera / Delay / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 464, IN2012-211, pp. 341-346, March 2013.
Paper # IN2012-211 
Date of Issue 2013-02-28 (IN) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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reproduction
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 IN2012-211

Conference Information
Committee NS IN  
Conference Date 2013-03-07 - 2013-03-08 
Place (in Japanese) (See Japanese page) 
Place (in English) Okinawa Zanpamisaki Royal Hotel 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General 
Paper Information
Registration To IN 
Conference Code 2013-03-NS-IN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Dynamic Time Slot Assignment Scheme for Picture Transfer in Wireless Sensor Networks 
Sub Title (in English)  
Keyword(1) Wireless Sensor Networks  
Keyword(2) TDMA  
Keyword(3) IEEE 802.15.4 Beacon Mode  
Keyword(4) Camera  
Keyword(5) Delay  
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1st Author's Name Ryosuke Nagai  
1st Author's Affiliation Chiba University (Chiba Univ)
2nd Author's Name Shiro Sakata  
2nd Author's Affiliation Chiba University (Chiba Univ)
3rd Author's Name Nobuyoshi Komuro  
3rd Author's Affiliation Chiba University (Chiba Univ)
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Speaker Author-1 
Date Time 2013-03-08 10:00:00 
Presentation Time 20 minutes 
Registration for IN 
Paper # IN2012-211 
Volume (vol) vol.112 
Number (no) no.464 
Page pp.341-346 
#Pages
Date of Issue 2013-02-28 (IN) 


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