| IEICE Technical Committee Submission System Conference Paper's Information |
Online Proceedings [Sign in] Tech. Rep. Archives |
| Go Top Page | Go Previous | [Japanese] / [English] |
| Paper Abstract and Keywords | ||
| Presentation | 2013-11-20 14:00 Comparison of Beamforming Matrix Control Methods in Base Station Cooperative Multiuser MIMO Using Block-Diagonalized Beamforming Matrix Nobuhide Nonaka (Tokyo Univ. of Science), Yuichi Kakishima (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science)  RCS2013-176 |
|
| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper investigates beamforming control method in the base station (BS) cooperative multiuser multiple-input multiple-output (MIMO) transmission assuming block-diagonalized unitary beamforming matrix. More specifically, we comprehensively compare the open-loop type random (opportunistic) beamforming control with the codebook-based closed-loop type beamforming control. The proportional fair (PF)-based scheduling is assumed, and the number of users, codebook size, and delay time of feedback signal from the user terminals are taken into account in the comparison. From the numerical results, the codebook-based beamforming control with large codebook size achieves higher system throughput than the random beamforming when the number of users is small and the feedback delay is short. However, we show that when the number of users is large and the feedback delay is long, the random beamforming can achieve higher system-level throughput than the codebook-based beamforming. This implies that the transmission rate control with random beamforming is more robust against the channel variation than that with codebook-based beamforming. These results suggest that the random beamforming which require lower feedback overhead than the codebook-based beamforming is a promising beamforming strategy in future radio access. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | MIMO / Multiuser MIMO / Base station cooperation / Random beamforming / Codebook / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 113, no. 301, RCS2013-176, pp. 13-18, Nov. 2013. | |
| Paper # | RCS2013-176 | |
| Date of Issue | 2013-11-13 (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 | RCS2013-176 |
|
| Conference Information | |
| Committee | RCS AP |
| Conference Date | 2013-11-20 - 2013-11-22 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Matsue Terrsa |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Adaptive Antenna, Equalization, Interference Canceller, MIMO, Wireless Communication Systems, etc. |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2013-11-RCS-AP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Comparison of Beamforming Matrix Control Methods in Base Station Cooperative Multiuser MIMO Using Block-Diagonalized Beamforming Matrix |
| Sub Title (in English) | |
| Keyword(1) | MIMO |
| Keyword(2) | Multiuser MIMO |
| Keyword(3) | Base station cooperation |
| Keyword(4) | Random beamforming |
| Keyword(5) | Codebook |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Nobuhide Nonaka |
| 1st Author's Affiliation | Tokyo University of Science (Tokyo Univ. of Science) |
| 2nd Author's Name | Yuichi Kakishima |
| 2nd Author's Affiliation | NTT DOCOMO, INC. (NTT DOCOMO) |
| 3rd Author's Name | Kenichi Higuchi |
| 3rd Author's Affiliation | Tokyo University of Science (Tokyo Univ. of Science) |
| 4th Author's Name | |
| 4th Author's Affiliation | () |
| 5th Author's Name | |
| 5th Author's Affiliation | () |
| 6th Author's Name | |
| 6th Author's Affiliation | () |
| 7th Author's Name | |
| 7th Author's Affiliation | () |
| 8th Author's Name | |
| 8th Author's Affiliation | () |
| 9th Author's Name | |
| 9th Author's Affiliation | () |
| 10th Author's Name | |
| 10th Author's Affiliation | () |
| 11th Author's Name | |
| 11th Author's Affiliation | () |
| 12th Author's Name | |
| 12th Author's Affiliation | () |
| 13th Author's Name | |
| 13th Author's Affiliation | () |
| 14th Author's Name | |
| 14th Author's Affiliation | () |
| 15th Author's Name | |
| 15th Author's Affiliation | () |
| 16th Author's Name | |
| 16th Author's Affiliation | () |
| 17th Author's Name | |
| 17th Author's Affiliation | () |
| 18th Author's Name | |
| 18th Author's Affiliation | () |
| Speaker | Author-1 |
| Date Time | 2013-11-20 14:00:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2013-176 |
| Volume (vol) | vol.113 |
| Number (no) | no.301 |
| Page | pp.13-18 |
| #Pages | 6 |
| Date of Issue | 2013-11-13 (RCS) |
[Return to Top Page]