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Paper Abstract and Keywords
Presentation 2009-01-23 14:00
[Invited Talk] Spectrum-Sharing Issues of Wireless Access Systems in the 5GHz Band
Masahiro Morikura (Kyoto Univ.) SR2008-82
Abstract (in Japanese) (See Japanese page) 
(in English) In 1997, the 5GHz band was allocated as the Unlicensed National Information Infrastructure (U-NII) band for wireless access systems in the U.S.A. in addition to the 2.4GHz ISM band. At the same time, a need for 5GHz band wireless access systems had been grown up in Japan and Europe. 5GHz band are very crowded with many wireless systems such as weather radar systems, medium earth orbit satellite communication systems, synthetic aperture radar systems onboard satellites and micro wave wireless relay systems. Spectrum-sharing issues between wireless access systems and other systems were the hottest topics from 1997 to 2002 in Japan. The purpose of this presentation is to review the spectrum-sharing issues which were discussed in the 5GHz bands, and to suggest some solutions for the future spectrum-sharing issues.
The following items are presented.
(1) spectrum-sharing between wireless access and medium earth orbit satellite systems in the 5.15-5.25GHz band
(2) spectrum-sharing between wireless access and weather radar and synthetic aperture radar systems onboard satellites in the 5.25-5.35GHz band
(3) spectrum-sharing between wireless access and micro wave relay systems in the 4.9-5.0GHz
(4) spectrum-sharing between different kind of wireless access systems in the same band
Keyword (in Japanese) (See Japanese page) 
(in English) spectrum-sharing / wireless access / wireless LAN / weather radar / / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 400, SR2008-82, pp. 89-89, Jan. 2009.
Paper # SR2008-82 
Date of Issue 2009-01-15 (SR) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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)
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Conference Information
Committee SR  
Conference Date 2009-01-22 - 2009-01-23 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyoto University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Cognitive radio, invited talk, and general session 
Paper Information
Registration To SR 
Conference Code 2009-01-SR 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Spectrum-Sharing Issues of Wireless Access Systems in the 5GHz Band 
Sub Title (in English)  
Keyword(1) spectrum-sharing  
Keyword(2) wireless access  
Keyword(3) wireless LAN  
Keyword(4) weather radar  
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1st Author's Name Masahiro Morikura  
1st Author's Affiliation Kyoto University (Kyoto Univ.)
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Speaker Author-1 
Date Time 2009-01-23 14:00:00 
Presentation Time 40 minutes 
Registration for SR 
Paper # SR2008-82 
Volume (vol) vol.108 
Number (no) no.400 
Page p.89 
#Pages
Date of Issue 2009-01-15 (SR) 


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