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| Presentation | 2016-03-02 13:40 Joint Interference Alignment Transceiver Filter Design and Power Allocation for Downlink Multi-User MIMO Interference Channels Fereidoun H. Panahi, Tomoaki Ohtsuki (Keio Univ.), Wenjie Jiang, Yasushi Takatori, Kazuhiro Uehara (NTT)  RCS2015-352 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We propose centralized iterative algorithms that jointly determine the optimal transmit and receive filters as well as the optimal power allocation for a K-user multiple-input multiple-output (MIMO) interference channel (IC). The optimality criterion is based on the achievable sum-rate and the average per user multiplexing gain in the MIMO IC. By allowing channel state information (CSI) exchanged between users and a central unit (CU), we design a feedback topology where a CU collects local CSIs from all users, computes all transmit and receive filters and sends them to corresponding user-base station (BS) pairs. At the CU, we propose iterative algorithms utilizing alternating optimization strategy to design the filters. In most of the studies on the MIMO IC, choice of equal transmit powers for all user-BS pairs ignores the essential need to search for the optimal power allocation policy; they do not take the full advantage of the system?s total power. How to allocate power among all the user-BS pairs in the network based on the sum-rate maximization strategy is the key to this work. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Interference alignment (IA) / Power allocation / Sum-rate maximization / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 115, no. 472, RCS2015-352, pp. 115-120, March 2016. | |
| Paper # | RCS2015-352 | |
| Date of Issue | 2016-02-24 (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 | RCS2015-352 |
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| Conference Information | |
| Committee | RCS CCS SR SRW |
| Conference Date | 2016-03-02 - 2016-03-04 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tokyo Institute of Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2016-03-RCS-CCS-SR-SRW |
| Language | English |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Joint Interference Alignment Transceiver Filter Design and Power Allocation for Downlink Multi-User MIMO Interference Channels |
| Sub Title (in English) | |
| Keyword(1) | Interference alignment (IA) |
| Keyword(2) | Power allocation |
| Keyword(3) | Sum-rate maximization |
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| 1st Author's Name | Fereidoun H. Panahi |
| 1st Author's Affiliation | Keio University (Keio Univ.) |
| 2nd Author's Name | Tomoaki Ohtsuki |
| 2nd Author's Affiliation | Keio University (Keio Univ.) |
| 3rd Author's Name | Wenjie Jiang |
| 3rd Author's Affiliation | Nippon Telegraph and Telephone Corporation (NTT) |
| 4th Author's Name | Yasushi Takatori |
| 4th Author's Affiliation | Nippon Telegraph and Telephone Corporation (NTT) |
| 5th Author's Name | Kazuhiro Uehara |
| 5th Author's Affiliation | Nippon Telegraph and Telephone Corporation (NTT) |
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| Speaker | Author-1 |
| Date Time | 2016-03-02 13:40:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2015-352 |
| Volume (vol) | vol.115 |
| Number (no) | no.472 |
| Page | pp.115-120 |
| #Pages | 6 |
| Date of Issue | 2016-02-24 (RCS) |
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