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Paper Abstract and Keywords
Presentation 2008-03-13 14:50
MIMO Channel Measurements including Human body and Blocking Objects at 2.4GHz/5.2GHz
Satoshi Kojima, Takahiro Mizuno, Kouta Nakamura, Keiichi Yoshitomi, Ken-ichi Asanuma, Tadahiko Maeda (Rits Univ.) AP2007-181
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years, MIMO (Multiple-Input Multiple-Output) systems achieving high data rate transmission have been receiving major emphasis. To enhance the throughput in the MIMO radio communications, we should consider not only the SNR of the received signal but also the effects of multipath on the statistical characteristic of the MIMO channels. When we propose MIMO system using small size portable terminals having multiple built-in antennas, it is important to analyze the effects of human body on the characteristics of the MIMO channels including the influence of the blocking objects. In this paper, we measured the statistical distribution of eigenvalues of 8 × 8 MIMO channels including human body and blocking objects at 2.45GHz and 5.2GHz. As a result of these measurements, the decrease of the first eigenvalue compared to the fourth eigenvalue becomes about -10dB for the tested communication models with assumed small size portable terminals.
Keyword (in Japanese) (See Japanese page) 
(in English) MIMO / eigenvalues / human body / blocking objects / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 543, AP2007-181, pp. 49-54, March 2008.
Paper # AP2007-181 
Date of Issue 2008-03-06 (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)
Download PDF AP2007-181

Conference Information
Committee AP  
Conference Date 2008-03-13 - 2008-03-14 
Place (in Japanese) (See Japanese page) 
Place (in English) Nanzan Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) etc. 
Paper Information
Registration To AP 
Conference Code 2008-03-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) MIMO Channel Measurements including Human body and Blocking Objects at 2.4GHz/5.2GHz 
Sub Title (in English)  
Keyword(1) MIMO  
Keyword(2) eigenvalues  
Keyword(3) human body  
Keyword(4) blocking objects  
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1st Author's Name Satoshi Kojima  
1st Author's Affiliation Ritsumeikan University (Rits Univ.)
2nd Author's Name Takahiro Mizuno  
2nd Author's Affiliation Ritsumeikan University (Rits Univ.)
3rd Author's Name Kouta Nakamura  
3rd Author's Affiliation Ritsumeikan University (Rits Univ.)
4th Author's Name Keiichi Yoshitomi  
4th Author's Affiliation Ritsumeikan University (Rits Univ.)
5th Author's Name Ken-ichi Asanuma  
5th Author's Affiliation Ritsumeikan University (Rits Univ.)
6th Author's Name Tadahiko Maeda  
6th Author's Affiliation Ritsumeikan University (Rits Univ.)
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Speaker Author-1 
Date Time 2008-03-13 14:50:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2007-181 
Volume (vol) vol.107 
Number (no) no.543 
Page pp.49-54 
#Pages 6 
Date of Issue 2008-03-06 (AP) 

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