Paper Abstract and Keywords |
Presentation |
2015-10-02 09:00
Joint Tx/Rx MMSE Filtering for Downlink Single-Carrier MU-MIMO Shinya Kumagai, Fumiyuki Adachi (Tohoku Univ.) RCS2015-176 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In broadband single-carrier (SC) multi-user (MU) multiple-input multiple-output (MIMO) transmissions, inter-symbol interference (ISI) caused by frequency-selectivity of the channel, inter-antenna interference (IAI) caused in each user equipment (UE), and inter-user interference (IUI) caused among UEs degrade the transmission quality. This paper proposes two kinds of minimum mean square error based joint transmit and receive linear spatial/frequency filtering (joint Tx/Rx MMSE filtering) for downlink SC-MU-MIMO transmissions. In the scheme I, IUI is removed by block diagonalization (BD) at the base station (BS), and then joint Tx/Rx MMSE filtering is carried out by applying singular value decomposition (SVD) to the equivalent channel matrix between BS and each UE. The joint Tx/Rx MMSE filtering transforms the equivalent channel between BS and each UE into eigenmodes where IAI does not occur, and suppresses ISI by applying MMSE-based Tx power allocation (PA) and Rx frequency-domain equalization (FDE) to each eigenmode. On the other hand, in the scheme II, joint Tx/Rx MMSE filtering is carried out by directly applying SVD to the channel matrix between BS and each UE. Unlike the scheme I, the joint Tx/Rx MMSE filtering suppresses IUI as well as ISI and IAI. Computer simulation results confirm the effectiveness of proposed joint Tx/Rx MMSE filtering in downlink SC-MU-MIMO transmissions. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
downlink / single-carrier / MU-MIMO / spatial/frequency filtering / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 115, no. 233, RCS2015-176, pp. 101-106, Oct. 2015. |
Paper # |
RCS2015-176 |
Date of Issue |
2015-09-24 (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) |
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RCS2015-176 |
Conference Information |
Committee |
RCS |
Conference Date |
2015-10-01 - 2015-10-02 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
YRP (Yokosuka) |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Wireless Communication Schemes, Wireless Communication Systems, Wireless Standards, etc. |
Paper Information |
Registration To |
RCS |
Conference Code |
2015-10-RCS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Joint Tx/Rx MMSE Filtering for Downlink Single-Carrier MU-MIMO |
Sub Title (in English) |
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downlink |
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single-carrier |
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MU-MIMO |
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spatial/frequency filtering |
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1st Author's Name |
Shinya Kumagai |
1st Author's Affiliation |
Tohoku University (Tohoku Univ.) |
2nd Author's Name |
Fumiyuki Adachi |
2nd Author's Affiliation |
Tohoku University (Tohoku Univ.) |
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Speaker |
Author-1 |
Date Time |
2015-10-02 09:00:00 |
Presentation Time |
25 minutes |
Registration for |
RCS |
Paper # |
RCS2015-176 |
Volume (vol) |
vol.115 |
Number (no) |
no.233 |
Page |
pp.101-106 |
#Pages |
6 |
Date of Issue |
2015-09-24 (RCS) |
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