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Paper Abstract and Keywords
Presentation 2012-11-15 10:15
Proposal of inerference reduction method using eigenmode transmission inside relay station transceiver
Takaaki Shirai, Kentaro Nishimori, Kota Shishido, Ryochi Kataoka (Niigata Univ.), Naoki Honma (Iwate Univ.), Hideo Makino (Niigata Univ.) AP2012-96
Abstract (in Japanese) (See Japanese page) 
(in English) This report proposes an interference cancellation method between relay transceiver which utilizes the feature of eigenmode transmission and LoS-MIMO. The proposed method exploits the propagation channel in which
the eigenvalues except largest eigenvalue (1st-eigenvalue) are much maller than 1st-eigenvalue when an appropriate element spacing is selected in LoS-MIMO. The interference reduction between relay transceiver can be realized by employing eigenvector beamforming without 1st-eigenvector. Moreover, in order to verify the effectiveness of the proposed method, we conducted the measurement when using 4×4 relay transceiver with Micro Strip Antennas(MSAs). It is shown that the measurement and calculated results agree with each other and 22 dB interference reduction can be obtained by the proposed method when considering the optimal element spacing.
Keyword (in Japanese) (See Japanese page) 
(in English) relay station / simultaneous tansmission and reception / interfering power reduction(IPR) / eigen-beam forming / / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 285, AP2012-96, pp. 19-24, Nov. 2012.
Paper # AP2012-96 
Date of Issue 2012-11-08 (AP) 
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)
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Conference Information
Committee AP RCS  
Conference Date 2012-11-14 - 2012-11-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Tokyo Denki University 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To AP 
Conference Code 2012-11-AP-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Proposal of inerference reduction method using eigenmode transmission inside relay station transceiver 
Sub Title (in English)  
Keyword(1) relay station  
Keyword(2) simultaneous tansmission and reception  
Keyword(3) interfering power reduction(IPR)  
Keyword(4) eigen-beam forming  
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1st Author's Name Takaaki Shirai  
1st Author's Affiliation Niigata University (Niigata Univ.)
2nd Author's Name Kentaro Nishimori  
2nd Author's Affiliation Niigata University (Niigata Univ.)
3rd Author's Name Kota Shishido  
3rd Author's Affiliation Niigata University (Niigata Univ.)
4th Author's Name Ryochi Kataoka  
4th Author's Affiliation Niigata University (Niigata Univ.)
5th Author's Name Naoki Honma  
5th Author's Affiliation Iwate University (Iwate Univ.)
6th Author's Name Hideo Makino  
6th Author's Affiliation Niigata University (Niigata Univ.)
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Speaker Author-1 
Date Time 2012-11-15 10:15:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2012-96 
Volume (vol) vol.112 
Number (no) no.285 
Page pp.19-24 
#Pages 6 
Date of Issue 2012-11-08 (AP) 

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