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Paper Abstract and Keywords
Presentation 2011-02-18 13:00
Implementation of precision clock synchronization system to IEEE802.11
Yuhichirou Tada, Hiroshi Yamamoto (Nagaoka Univ. Tech.), Masahiko Kaneko (WiViCom Co., Ltd.), Katsuyuki Yamazaki (Nagaoka Univ. Tech.) IA2010-75
Abstract (in Japanese) (See Japanese page) 
(in English) In environmental measurement fields such as seismic observations, measuring environmental data with high precision clock is required. In the measurement field, a communication network is often configured by wireless connections. In order to accurately synchronize clocks of the mobile terminals on the network, the previous study has developed Precision Time Protocol (PTP) of IEEE 1588 for IEEE802.11 wireless network, which has achieved 10μs as accuracy. This precise clock synchronization is, however, supported only by Wi-Fi card and the clock is not provided to its host computers. If this precise clock can be used by any application on host PC, flexibility will significantly increase.
Therefore, we study how applications of host PC obtain the precise clock information stored in the Wi-Fi card.
In this paper, we implemented the PTP system and report the experiment result and the evaluation.

Wireless LAN, Clock Synchronization, NTP, PTP, IEEE 1588, PCI Bus
Keyword (in Japanese) (See Japanese page) 
(in English) Wireless LAN / Clock Synchronization / NTP / PTP / IEEE 1588 / PCI Bus / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 417, IA2010-75, pp. 23-28, Feb. 2011.
Paper # IA2010-75 
Date of Issue 2011-02-11 (IA) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
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 IA2010-75

Conference Information
Committee IA  
Conference Date 2011-02-18 - 2011-02-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Energy Saving and Super High-speed Network, etc. 
Paper Information
Registration To IA 
Conference Code 2011-02-IA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Implementation of precision clock synchronization system to IEEE802.11 
Sub Title (in English)  
Keyword(1) Wireless LAN  
Keyword(2) Clock Synchronization  
Keyword(3) NTP  
Keyword(4) PTP  
Keyword(5) IEEE 1588  
Keyword(6) PCI Bus  
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Keyword(8)  
1st Author's Name Yuhichirou Tada  
1st Author's Affiliation Nagaoka University of Technology (Nagaoka Univ. Tech.)
2nd Author's Name Hiroshi Yamamoto  
2nd Author's Affiliation Nagaoka University of Technology (Nagaoka Univ. Tech.)
3rd Author's Name Masahiko Kaneko  
3rd Author's Affiliation WiViCom Co., Ltd. (WiViCom Co., Ltd.)
4th Author's Name Katsuyuki Yamazaki  
4th Author's Affiliation Nagaoka University of Technology (Nagaoka Univ. Tech.)
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Speaker Author-1 
Date Time 2011-02-18 13:00:00 
Presentation Time 25 minutes 
Registration for IA 
Paper # IA2010-75 
Volume (vol) vol.110 
Number (no) no.417 
Page pp.23-28 
#Pages 6 
Date of Issue 2011-02-11 (IA) 

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