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| Presentation | 2012-04-20 15:45 Downlink Power Allocation with CSI overhearing in a Macrocell/Femtocell Coexisting System based on Multi-Carrier Transmission Toshihiko Nakano, Megumi Kaneko, Kazunori Hayashi, Hideaki Sakai (Kyoto Univ.)  RCS2012-21 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In this paper, we propose a power allocation method for a Femtocell Base Station (FBS) in a macrocell/femtocell coexisting system based on OFDMA transmission. In most conventional methods, FBS to macrocell users channel state information, necessary to mitigate the interference to macrocell users, is obtained through a control channel. However, this results into a significant overhead increase, which should be avoided. To address this problem, in the proposed method, FBS overhears the Channel State Information (CSI) fed back from macrocell users to the Macrocell Base Station (MBS). Based on the obtained CSI, the FBS predicts the macrocell users' subcarrier allocation, and performs its own power allocation. With this procedure, the proposed method can mitigate the interference to macrocell users without largely increasing control overhead. Numerical results show the sum-rate improvements brought by our proposed method, for both macrocell and femtocell, compared to reference schemes. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Femtocell / Power Allocation / OFDMA / CSI / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 112, no. 11, RCS2012-21, pp. 121-126, April 2012. | |
| Paper # | RCS2012-21 | |
| Date of Issue | 2012-04-12 (RCS) | |
| 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 | RCS2012-21 |
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| Conference Information | |
| Committee | RCS |
| Conference Date | 2012-04-19 - 2012-04-20 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kyoto Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Radio Access Technologies, etc. |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2012-04-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Downlink Power Allocation with CSI overhearing in a Macrocell/Femtocell Coexisting System based on Multi-Carrier Transmission |
| Sub Title (in English) | |
| Keyword(1) | Femtocell |
| Keyword(2) | Power Allocation |
| Keyword(3) | OFDMA |
| Keyword(4) | CSI |
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| 1st Author's Name | Toshihiko Nakano |
| 1st Author's Affiliation | Kyoto University (Kyoto Univ.) |
| 2nd Author's Name | Megumi Kaneko |
| 2nd Author's Affiliation | Kyoto University (Kyoto Univ.) |
| 3rd Author's Name | Kazunori Hayashi |
| 3rd Author's Affiliation | Kyoto University (Kyoto Univ.) |
| 4th Author's Name | Hideaki Sakai |
| 4th Author's Affiliation | Kyoto University (Kyoto Univ.) |
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| Speaker | Author-1 |
| Date Time | 2012-04-20 15:45:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2012-21 |
| Volume (vol) | vol.112 |
| Number (no) | no.11 |
| Page | pp.121-126 |
| #Pages | 6 |
| Date of Issue | 2012-04-12 (RCS) |
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