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| Presentation | 2009-07-10 14:50 A Study on Keyhole Effect of MIMO Transmission in outdoor to indoor Radio Propagation Environments Ryo Kataoka, Daigo Ogata, Tokio Taga (Kwansei Gakuin Univ.), Tetsuro Imai (NTT docomo)  AP2009-73 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In outdoor to indoor radio propagation environments, multi-path effect of MIMO channel occurs only in indoor environments with paths propagated through apertures like windows when the outdoor propagation environments behave to be the free space propagation. When the dominant propagation paths are paths propagated through those apertures, it might be expected that smaller size of aperture can cause the keyhole effect because of the MIMO channel reduction. This report shows some results with respect to the keyhole effect for 2-by-2 MIMO channel in outdoor to indoor environments, which channel responses are estimated by ray-tracing method and aperture field method. This paper also shows measurement results for 2x2 MIMO channel conducted in 2.2 GHz band in which an aperture size is decreased, and discusses about the comparison with the calculated results. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | multiple-input multiple-output(MIMO) / Keyhole Effect / Aperture Field Method / Outdoor-Indoor Propagation / Eigen Value / MIMO Capacity / Measurements / | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 117, AP2009-73, pp. 171-176, July 2009. | |
| Paper # | AP2009-73 | |
| Date of Issue | 2009-07-01 (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 | AP2009-73 |
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| Conference Information | |
| Committee | AP SAT |
| Conference Date | 2009-07-08 - 2009-07-10 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Otaru city, Hokkaido |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | AP |
| Paper Information | |
| Registration To | AP |
| Conference Code | 2009-07-AP-SAT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Keyhole Effect of MIMO Transmission in outdoor to indoor Radio Propagation Environments |
| Sub Title (in English) | |
| Keyword(1) | multiple-input multiple-output(MIMO) |
| Keyword(2) | Keyhole Effect |
| Keyword(3) | Aperture Field Method |
| Keyword(4) | Outdoor-Indoor Propagation |
| Keyword(5) | Eigen Value |
| Keyword(6) | MIMO Capacity |
| Keyword(7) | Measurements |
| Keyword(8) | |
| 1st Author's Name | Ryo Kataoka |
| 1st Author's Affiliation | Kwansei Gakuin University (Kwansei Gakuin Univ.) |
| 2nd Author's Name | Daigo Ogata |
| 2nd Author's Affiliation | Kwansei Gakuin University (Kwansei Gakuin Univ.) |
| 3rd Author's Name | Tokio Taga |
| 3rd Author's Affiliation | Kwansei Gakuin University (Kwansei Gakuin Univ.) |
| 4th Author's Name | Tetsuro Imai |
| 4th Author's Affiliation | NTT DOCOMO INC (NTT docomo) |
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| Speaker | Author-1 |
| Date Time | 2009-07-10 14:50:00 |
| Presentation Time | 25 minutes |
| Registration for | AP |
| Paper # | AP2009-73 |
| Volume (vol) | vol.109 |
| Number (no) | no.117 |
| Page | pp.171-176 |
| #Pages | 6 |
| Date of Issue | 2009-07-01 (AP) |
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