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Paper Abstract and Keywords
Presentation 2014-06-16 14:15
The Field-Test Results of Frequency Spread Spectrum Wireless System on 920MHz Frequency Band
Kazuo Kimura, Masaki Fujiwara, Eiji Ogata, Hiroshi Masugi (Oi Electric) SRW2014-9
Abstract (in Japanese) (See Japanese page) 
(in English) In wireless systems using “ the specified low power radio ”, the amount of information to be transmitted may be small, there is a need for widening coverage area, improving reliability and immunity against the interference by other systems working in the same frequency band . We developed a wireless system using spread spectrum modulation suitable for reliable wide-area and low data rate communication. Field tests are carried out at three places in Sendai city : (a) between a hilltop and lowland area in suburbs, (b) between two points in the coastal flat plain, and (c) between the rooftop of the station and surrounding streets. The field-test results show that the obtained propagation distances at a data rate of 1.95kbps and a packet error rate(P.E.R.) of less than 10-2 are roughly 14km, 6km and 1km, respectively.
Keyword (in Japanese) (See Japanese page) 
(in English) spread spectrum / sensor network / specified low power radio system / / / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 84, SRW2014-9, pp. 47-51, June 2014.
Paper # SRW2014-9 
Date of Issue 2014-06-09 (SRW) 
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)
Notes on Review This article is a technical report without peer review, and its polished version will be published elsewhere.
Download PDF SRW2014-9

Conference Information
Committee SRW  
Conference Date 2014-06-16 - 2014-06-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Mitsubishi Electric 
Topics (in Japanese) (See Japanese page) 
Topics (in English) WLAN，WPAN，Adhoc, etc. 
Paper Information
Registration To SRW 
Conference Code 2014-06-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) The Field-Test Results of Frequency Spread Spectrum Wireless System on 920MHz Frequency Band 
Sub Title (in English)  
Keyword(1) spread spectrum  
Keyword(2) sensor network  
Keyword(3) specified low power radio system  
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1st Author's Name Kazuo Kimura  
1st Author's Affiliation Oi Electric Co, Ltd. (Oi Electric)
2nd Author's Name Masaki Fujiwara  
2nd Author's Affiliation Oi Electric Co, Ltd. (Oi Electric)
3rd Author's Name Eiji Ogata  
3rd Author's Affiliation Oi Electric Co, Ltd. (Oi Electric)
4th Author's Name Hiroshi Masugi  
4th Author's Affiliation Oi Electric Co, Ltd. (Oi Electric)
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Speaker Author-1 
Date Time 2014-06-16 14:15:00 
Presentation Time 25 minutes 
Registration for SRW 
Paper # SRW2014-9 
Volume (vol) vol.114 
Number (no) no.84 
Page pp.47-51 
#Pages 5 
Date of Issue 2014-06-09 (SRW) 

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