Paper Abstract and Keywords |
Presentation |
2015-01-23 15:25
Joint Tx/Rx MMSE Filtering for Uplink Single-Carrier MU-MIMO Shinya Kumagai, Fumiyuki Adachi (Tohoku Univ.) SIP2014-112 RCS2014-300 |
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 a minimum mean square error based joint transmit and receive linear spatial/frequency filtering (joint Tx/Rx MMSE filtering) for uplink SC-MU-MIMO transmissions assuming each UE shares the channel state information (CSI) between it and base station (BS) with BS. Cooperatively applying each UE’s Tx filtering and BS’s Rx filtering transforms the single-user (SU) MIMO channel between each UE and BS to multiple eigenmodes, and applies MMSE based Tx power allocation and Rx frequency-domain equalization (FDE) to each eigenmode. As a consequence, IAI and ISI are suppressed significantly. At the same time, IUI is suppressed by BS’s Rx filtering. Additionally, adaptive rank/modulation control (ARMC) is introduced to effectively use the received signal-to-interference plus noise power ratio (SINR) gap among eigenmodes. Computer simulation results confirm the effectiveness of proposed joint Tx/Rx MMSE filtering in uplink SC-MU-MIMO transmissions. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
uplink / single-carrier / MU-MIMO / spatial/frequency filtering / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 114, no. 395, RCS2014-300, pp. 181-186, Jan. 2015. |
Paper # |
RCS2014-300 |
Date of Issue |
2015-01-15 (SIP, 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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SIP2014-112 RCS2014-300 |
Conference Information |
Committee |
SIP RCS |
Conference Date |
2015-01-22 - 2015-01-23 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Okayama Univ. |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Signal Processing for Wireless Communications, etc. |
Paper Information |
Registration To |
RCS |
Conference Code |
2015-01-SIP-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 Uplink Single-Carrier MU-MIMO |
Sub Title (in English) |
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uplink |
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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 |
2015-01-23 15:25:00 |
Presentation Time |
25 minutes |
Registration for |
RCS |
Paper # |
SIP2014-112, RCS2014-300 |
Volume (vol) |
vol.114 |
Number (no) |
no.394(SIP), no.395(RCS) |
Page |
pp.181-186 |
#Pages |
6 |
Date of Issue |
2015-01-15 (SIP, RCS) |
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