Paper Abstract and Keywords |
Presentation |
2014-06-17 10:13
Low Complexity Precoder for MU-MIMO System using Proposed Decompression Method for V Matrix Naotaka Yoshida, Yuji Yokota, Yuhei Nagao, Hiroshi Ochi (Kyusyu Inst. of Tech.) RCS2014-40 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Iterative calculation is one technique to compute block diagonalization (BD) precoders for Multi-User Multiple Input Multiple Output(MU-MIMO) IEEE 802.11ac Wireless LAN. This method which we call BD-Iteration can start the weight matrix calculation even before all channel state information (CSI) from all users are received and hence improves the latency of the MU-MIMO system. BD-Iteration, however, has a higher complexity compared to non-iterative BD due to the overhead of the iteration process. In this paper, we reduce the complexity due to the iteration process by computing the nullspace needed in the BD method together with the CSI decompression. We show that our method can significantly reduce the complexity of the system while maintaining
the performance compared to the conventional. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
IEEE 802.11ac / MU-MIMO / Vmatrix / CSIfeedback / Linear precoding / / / |
Reference Info. |
IEICE Tech. Rep., vol. 114, no. 86, RCS2014-40, pp. 49-54, June 2014. |
Paper # |
RCS2014-40 |
Date of Issue |
2014-06-10 (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) |
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RCS2014-40 |
Conference Information |
Committee |
RCS |
Conference Date |
2014-06-17 - 2014-06-19 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Okinawa-ken Seinenkaikan (Naha) |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
First Presentation in IEICE Technical Committee, Railroad Communications, Inter-Vehicle Communications, Road to Vehicle Communications, Resource Control, Scheduling, Wireless Communication Systems, etc. |
Paper Information |
Registration To |
RCS |
Conference Code |
2014-06-RCS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Low Complexity Precoder for MU-MIMO System using Proposed Decompression Method for V Matrix |
Sub Title (in English) |
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Keyword(1) |
IEEE 802.11ac |
Keyword(2) |
MU-MIMO |
Keyword(3) |
Vmatrix |
Keyword(4) |
CSIfeedback |
Keyword(5) |
Linear precoding |
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1st Author's Name |
Naotaka Yoshida |
1st Author's Affiliation |
Kyushu Institute of Technology (Kyusyu Inst. of Tech.) |
2nd Author's Name |
Yuji Yokota |
2nd Author's Affiliation |
Kyushu Institute of Technology (Kyusyu Inst. of Tech.) |
3rd Author's Name |
Yuhei Nagao |
3rd Author's Affiliation |
Kyushu Institute of Technology (Kyusyu Inst. of Tech.) |
4th Author's Name |
Hiroshi Ochi |
4th Author's Affiliation |
Kyushu Institute of Technology (Kyusyu Inst. of Tech.) |
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Speaker |
Author-1 |
Date Time |
2014-06-17 10:13:00 |
Presentation Time |
8 minutes |
Registration for |
RCS |
Paper # |
RCS2014-40 |
Volume (vol) |
vol.114 |
Number (no) |
no.86 |
Page |
pp.49-54 |
#Pages |
6 |
Date of Issue |
2014-06-10 (RCS) |
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