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Paper Abstract and Keywords
Presentation 2012-01-27 08:30
Interference Suppression Method for Spectrum Sharing in MIMO System
Keiko Asaumi, Kenta Umebayashi, Yasuo Suzuki (Tokyo Univ. of Agr and Tech.) SR2011-89
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years, the scarcity of vacant spectrum bands has significantly impeded growth in demand for a usable spectrum for new wireless services.
On the other hand, the spectrum assigned to licensed system (so called primary user: PU) has not been used efficiently. To overcome this problem, dynamic spectrum sharing has been paid much attention. In this paper, we focus on a multiple input multiple output(MIMO) based space domain spectrum sharing technique in secondary user (SU). The purpose of this technique is to maximization of SU throughput with a constrain of harmful interference at PU. In a related work which also proposed MIMO based spectrum sharing techniques, D-SVD where a singular value decomposition based transmitting weight is used and P-SVD where a transmitting weight is determined to provide a orthogonality in channel toward PU, and Hybrid D-SVD/P-SVD where better one is selected from D-SVD and P-SVD. In our proposed method, a parameter indicating a degree of orthogonality in terms of channel toward PU is used to determine a transmitting weight in SU. Use of this parameter can increase a degree of freedoms in power allocation and it leads to enhancement of SU channel capacity. We verify the effectiveness of the proposed method by computer simulation simulations.
Keyword (in Japanese) (See Japanese page) 
(in English) harmful interference / spatial spectrum sharing / MIMO / channel capacity / dynamic resource allocation / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 417, SR2011-89, pp. 67-72, Jan. 2012.
Paper # SR2011-89 
Date of Issue 2012-01-19 (SR) 
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 SR2011-89

Conference Information
Committee SR  
Conference Date 2012-01-26 - 2012-01-27 
Place (in Japanese) (See Japanese page) 
Place (in English) Kagoshima 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Cognitive Radio Network, Cross Layer Technology 
Paper Information
Registration To SR 
Conference Code 2012-01-SR 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Interference Suppression Method for Spectrum Sharing in MIMO System 
Sub Title (in English)  
Keyword(1) harmful interference  
Keyword(2) spatial spectrum sharing  
Keyword(3) MIMO  
Keyword(4) channel capacity  
Keyword(5) dynamic resource allocation  
Keyword(6)  
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1st Author's Name Keiko Asaumi  
1st Author's Affiliation Tokyo University of Agriculture and Technology (Tokyo Univ. of Agr and Tech.)
2nd Author's Name Kenta Umebayashi  
2nd Author's Affiliation Tokyo University of Agriculture and Technology (Tokyo Univ. of Agr and Tech.)
3rd Author's Name Yasuo Suzuki  
3rd Author's Affiliation Tokyo University of Agriculture and Technology (Tokyo Univ. of Agr and Tech.)
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Speaker Author-1 
Date Time 2012-01-27 08:30:00 
Presentation Time 25 minutes 
Registration for SR 
Paper # SR2011-89 
Volume (vol) vol.111 
Number (no) no.417 
Page pp.67-72 
#Pages 6 
Date of Issue 2012-01-19 (SR) 

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