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Paper Abstract and Keywords
Presentation 2013-10-17 15:30
[Invited Lecture] Multi-band Frequency Cooperative Wireless Systems for Ultra-high Capacity Wireless Networks
Masahiro Umehira, Shigeki Takeda, Teruyuki Miyajima, Kenichi Kagoshima (Ibaraki Univ.) RCS2013-154
Abstract (in Japanese) (See Japanese page) 
(in English) The number of wireless users such as cellular phone and wireless LAN is continuing to increase all over the world including Japan. Furthermore, the advent of smart phone and tablet terminal causes rapid growth of mobile traffic at the increasing rate of 1.5 to 2 times per year. This fact forces us to develop advanced technologies for ultra-high capacity wireless networks to carry 100-1000 times higher traffic in 10 years. To achieve this goal, it is very important not only to improve the spectrum efficiency but also to utilize higher frequency bands which have not been used for mobile communications so far. However, large propagation loss is encountered due to shadowing in higher frequency bands. A promising solution for this problem is “multi-band frequency cooperative wireless system” to supplement each other to cover disadvantages of each frequency band. This report describes the concept of “multi-band frequency cooperative wireless system” and technical issues to realize it. Furthermore, it describes the preliminary results on a service area detection method for the multi-band frequency cooperative wireless LAN using 60GHz band and 2.4/5GHz band.
Keyword (in Japanese) (See Japanese page) 
(in English) Ultra-high capacity / multi-band / frequency cooperative / wireless system / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 246, RCS2013-154, pp. 65-71, Oct. 2013.
Paper # RCS2013-154 
Date of Issue 2013-10-10 (RCS) 
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 RCS2013-154

Conference Information
Committee RCS  
Conference Date 2013-10-17 - 2013-10-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Sophia Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Wireless Communication Schemes, Wireless Communication Systems, Wireless Standards, etc. 
Paper Information
Registration To RCS 
Conference Code 2013-10-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Multi-band Frequency Cooperative Wireless Systems for Ultra-high Capacity Wireless Networks 
Sub Title (in English)  
Keyword(1) Ultra-high capacity  
Keyword(2) multi-band  
Keyword(3) frequency cooperative  
Keyword(4) wireless system  
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1st Author's Name Masahiro Umehira  
1st Author's Affiliation Ibaraki University (Ibaraki Univ.)
2nd Author's Name Shigeki Takeda  
2nd Author's Affiliation Ibaraki University (Ibaraki Univ.)
3rd Author's Name Teruyuki Miyajima  
3rd Author's Affiliation Ibaraki University (Ibaraki Univ.)
4th Author's Name Kenichi Kagoshima  
4th Author's Affiliation Ibaraki University (Ibaraki Univ.)
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Speaker Author-1 
Date Time 2013-10-17 15:30:00 
Presentation Time 30 minutes 
Registration for RCS 
Paper # RCS2013-154 
Volume (vol) vol.113 
Number (no) no.246 
Page pp.65-71 
#Pages 7 
Date of Issue 2013-10-10 (RCS) 

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