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Paper Abstract and Keywords
Presentation 2007-05-17 13:25
Directional Antenna Configuration of Indoor Base Station Antennas Considering Aspect Ratio of Rooms for MIMO systems
Daisuke Uchida, Taihei Michihata, Hiroyuki Arai (Yokohama National Univ.), Yuki Inoue, Keizo Cho, Tamami Maruyama (NTT DoCoMo, Inc.) AP2007-14
Abstract (in Japanese) (See Japanese page) 
(in English) We have examined the efficiency in the introduction of the directional antenna to the base station for the indoor propagation environment. When the directional antenna is used for an actual environment, there are a lot of variety of room shapes, such as, office, meeting room, and etc. Then, the beamwidth and the beam direction of base station antennas should be optimized to maximize the channel capacity depending on the room shape. This paper presents the optimum beam width and the direction of base station antenna for various room shapes using by ray-tracing method to obtain the maximum channel capacity in MIMO system used under indoor propagation environment.
Keyword (in Japanese) (See Japanese page) 
(in English) MIMO / ray-tracing method / aspect ratio / reflection coefficient / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 35, AP2007-14, pp. 7-12, May 2007.
Paper # AP2007-14 
Date of Issue 2007-05-10 (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 AP2007-14

Conference Information
Committee AP  
Conference Date 2007-05-17 - 2007-05-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Kochi Univ. of Tech. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) etc. 
Paper Information
Registration To AP 
Conference Code 2007-05-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Directional Antenna Configuration of Indoor Base Station Antennas Considering Aspect Ratio of Rooms for MIMO systems 
Sub Title (in English)  
Keyword(1) MIMO  
Keyword(2) ray-tracing method  
Keyword(3) aspect ratio  
Keyword(4) reflection coefficient  
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Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Daisuke Uchida  
1st Author's Affiliation Yokohama National University (Yokohama National Univ.)
2nd Author's Name Taihei Michihata  
2nd Author's Affiliation Yokohama National University (Yokohama National Univ.)
3rd Author's Name Hiroyuki Arai  
3rd Author's Affiliation Yokohama National University (Yokohama National Univ.)
4th Author's Name Yuki Inoue  
4th Author's Affiliation NTT DoCoMo, Inc. (NTT DoCoMo, Inc.)
5th Author's Name Keizo Cho  
5th Author's Affiliation NTT DoCoMo, Inc. (NTT DoCoMo, Inc.)
6th Author's Name Tamami Maruyama  
6th Author's Affiliation NTT DoCoMo, Inc. (NTT DoCoMo, Inc.)
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Speaker Author-1 
Date Time 2007-05-17 13:25:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2007-14 
Volume (vol) vol.107 
Number (no) no.35 
Page pp.7-12 
#Pages 6 
Date of Issue 2007-05-10 (AP) 

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