Paper Abstract and Keywords |
Presentation |
2018-06-21 13:00
Transmit Beam Selection Scheme for Massive MIMO using Expected Beam Responses Yoshihito Kubo, Yukitoshi Sanada (Keio Univ.) RCS2018-55 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Massive multiple-input multiple-output (MIMO) realizes simultaneous transmission to a large number of mobile stations (MSs) and improves frequency utilization efficiency. It is drawing attention as one of the key technologies of the fifth-generation (5G) mobile communication systems. The 5G system is going to be implemented in a high frequency band and beamforming (BF) with the massive MIMO is applied to compensate propagation loss. In a conventional BF scheme, a transmit beam is selected based on the power of received signals over subcarriers. The signal on a different subcarrier is transmitted with a different directivity. To improve the accuracy of beam selection, this paper proposes a transmit beam selection scheme for the massive MIMO. The proposed scheme calculates the expected responses of the signals over the subcarriers based on the relative directivity between a base station (BS) and a MS. The MS calculates correlation between the received signals and each of the expected response sequences. It then selects the beam with the highest correlation value. It is shown in this report that the proposed scheme can improve the average signal-to-noise ratio of a received signal by about 1.5dB as compared with that of the power based search scheme. It is also shown that the proposed scheme with limited response coefficients can reduce computational complexity by a factor of $1/100$ while it still increases the average SNR by about 1.0dB. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
5G / Massive MIMO / Beamforming / Transmit Beam Selection / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 118, no. 101, RCS2018-55, pp. 119-124, June 2018. |
Paper # |
RCS2018-55 |
Date of Issue |
2018-06-13 (RCS) |
ISSN |
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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RCS2018-55 |
Conference Information |
Committee |
RCS |
Conference Date |
2018-06-20 - 2018-06-22 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Nagasaki University |
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 |
2018-06-RCS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Transmit Beam Selection Scheme for Massive MIMO using Expected Beam Responses |
Sub Title (in English) |
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5G |
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Massive MIMO |
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Beamforming |
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Transmit Beam Selection |
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1st Author's Name |
Yoshihito Kubo |
1st Author's Affiliation |
Keio University (Keio Univ.) |
2nd Author's Name |
Yukitoshi Sanada |
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Keio University (Keio Univ.) |
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Speaker |
Author-1 |
Date Time |
2018-06-21 13:00:00 |
Presentation Time |
10 minutes |
Registration for |
RCS |
Paper # |
RCS2018-55 |
Volume (vol) |
vol.118 |
Number (no) |
no.101 |
Page |
pp.119-124 |
#Pages |
6 |
Date of Issue |
2018-06-13 (RCS) |
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