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Paper Abstract and Keywords
Presentation 2009-03-04 15:00
A Study on Location Estimation Method for Cognitive Wireless Network Using Dynamic Spectrum Allocation
Toshimitsu Tatsuka, Ryoji Hashimoto, Kenji Watanabe, Masahide Hatanaka, Takao Onoye (Osaka Univ.) IN2008-220
Abstract (in Japanese) (See Japanese page) 
(in English) It is necessary to estimate the location of users in order to establish networks which provides desired information to users according to their given conditions. Therefore some location estimation methods for wireless network are proposed, which utilize recieved power.

However it is difficult to utilize traditional location estimation methods in cognitive wireless networks using dynamic spectrum allocation because the usable frequency for each user is a collection of spectrum spots.
So this paper proposes the location estimation method using spectrum intensity for cognitive wireless networks.
This location estimation can be performed without influence of the spectrum spots used by other users in the same communication channel.
The architecture of FFT circuit is also proposed. The FFT circuit can calculate spectrum intensity. The number of cycles for both input and output of data is reduced by using characteristics of dynamic spectrum allocation. The proposed architecture is implemented in 13,169 gates by using 0.13 $\mu$m CMOS technology.
Keyword (in Japanese) (See Japanese page) 
(in English) Cognitive Wireless Network / Dynamic Spectrum Allocation / Location Estimation / / / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 458, IN2008-220, pp. 523-528, March 2009.
Paper # IN2008-220 
Date of Issue 2009-02-24 (IN) 
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 IN2008-220

Conference Information
Committee IN NS  
Conference Date 2009-03-03 - 2009-03-04 
Place (in Japanese) (See Japanese page) 
Place (in English) Okinawa-Zanpamisaki Royal Hotel 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General issues 
Paper Information
Registration To IN 
Conference Code 2009-03-IN-NS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Location Estimation Method for Cognitive Wireless Network Using Dynamic Spectrum Allocation 
Sub Title (in English)  
Keyword(1) Cognitive Wireless Network  
Keyword(2) Dynamic Spectrum Allocation  
Keyword(3) Location Estimation  
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1st Author's Name Toshimitsu Tatsuka  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Ryoji Hashimoto  
2nd Author's Affiliation Osaka University (Osaka Univ.)
3rd Author's Name Kenji Watanabe  
3rd Author's Affiliation Osaka University (Osaka Univ.)
4th Author's Name Masahide Hatanaka  
4th Author's Affiliation Osaka University (Osaka Univ.)
5th Author's Name Takao Onoye  
5th Author's Affiliation Osaka University (Osaka Univ.)
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Speaker Author-1 
Date Time 2009-03-04 15:00:00 
Presentation Time 20 minutes 
Registration for IN 
Paper # IN2008-220 
Volume (vol) vol.108 
Number (no) no.458 
Page pp.523-528 
#Pages 6 
Date of Issue 2009-02-24 (IN) 

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