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Paper Abstract and Keywords
Presentation 2007-06-22 10:00
Evaluation of robustness in time synchronization for sensor networks
Akira Mutazono (Osaka Univ.), Masashi Sugano (Osaka Pref. Univ.), Masayuki Murata (Osaka Univ.) IN2007-16
Abstract (in Japanese) (See Japanese page) 
(in English) In sensor network the time synchronization between sensor nodes is important because of efficient information gathering or energy-saving control. Since the network size and the environment of a sensor network change variously, the technique of time synchronization suitable for each network is required. Pulse Coupled Oscillation (PCO) models how the local interaction between individuals realizes the whole synchronization. On the other hand, there is a multi-hop reference broadcast synchronization (RBS) method which obtains the time synchronization of the whole network by transmitting the difference of the time from reference nodes to the network divided into the cluster. In this paper, we perform comparison about these two techniques in consideration of jitter of delay and the loss of packet resulting from lower layer protocol. We investigated the performance of each technique under the influence of network size, wireless channel quality, etc. through the simulation experiment. We present results obtained from simulation that how each method shows their best performance.
Keyword (in Japanese) (See Japanese page) 
(in English) sensor networks / synchronization / pulse coupled oscillator / CSMA/CA / multi-hop RBS / packet loss / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 98, IN2007-16, pp. 31-36, June 2007.
Paper # IN2007-16 
Date of Issue 2007-06-14 (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 IN  
Conference Date 2007-06-21 - 2007-06-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Future University-Hakodate 
Topics (in Japanese) (See Japanese page) 
Topics (in English) NGN, VoIP, Contents Delivery Network, IPv6, Next Generation Network, etc. 
Paper Information
Registration To IN 
Conference Code 2007-06-IN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Evaluation of robustness in time synchronization for sensor networks 
Sub Title (in English)  
Keyword(1) sensor networks  
Keyword(2) synchronization  
Keyword(3) pulse coupled oscillator  
Keyword(4) CSMA/CA  
Keyword(5) multi-hop RBS  
Keyword(6) packet loss  
1st Author's Name Akira Mutazono  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Masashi Sugano  
2nd Author's Affiliation Osaka Prefecture University (Osaka Pref. Univ.)
3rd Author's Name Masayuki Murata  
3rd Author's Affiliation Osaka University (Osaka Univ.)
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Date Time 2007-06-22 10:00:00 
Presentation Time 25 
Registration for IN 
Paper # IEICE-IN2007-16 
Volume (vol) IEICE-107 
Number (no) no.98 
Page pp.31-36 
#Pages IEICE-6 
Date of Issue IEICE-IN-2007-06-14 

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