Paper Abstract and Keywords |
Presentation |
2019-07-10 15:20
A Study on Concatenated Beam- and Antenna- domain Layered BP for Large MIMO Detection Takumi Takahashi (Osaka Univ.), Antti Tolli (Univ. of Oulu), Shinsuke Ibi (Doshisha Univ.), Seiichi Sampei (Osaka Univ.) RCC2019-15 NS2019-48 RCS2019-105 SR2019-24 SeMI2019-24 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
This paper proposes a concatenated beam- and antenna-domain belief propagation (BP) for realizing low-complexity large multi-user MIMO detection. As a low-complexity strategy for large-scale multi-user detection (MUD), group-specific signal detection in the beam domain has been proposed, where user equipments (UEs) are grouped based on the long-term channel statistics at a base station (BS) to design outer beamformer (OBF). In this case, the BP-based algorithm is effective as the subsequent signal detector to compensate for the performance degradation due to the dimensionality reduction caused by the OBF. However, the convergence characteristics of beam-domain BP is degraded as compared to the antenna-domain BP due to an increased correlation between the beliefs. To avoid the impairments, we propose a novel concatenated structure of beam- and antenna-domain BP layers, which allows us to benefit from the advantages of both domains while maintaining low signal processing complexity. Numerical results show the validity of our proposed method in terms of the bit error rate (BER) performance both in the coded and uncoded cases and the computational complexity. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Large MIMO / Belief propagation / Beam-domain processing / Low complexity / Domain conversion / / / |
Reference Info. |
IEICE Tech. Rep., vol. 119, no. 108, RCS2019-105, pp. 25-30, July 2019. |
Paper # |
RCS2019-105 |
Date of Issue |
2019-07-03 (RCC, NS, RCS, SR, SeMI) |
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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RCC2019-15 NS2019-48 RCS2019-105 SR2019-24 SeMI2019-24 |
Conference Information |
Committee |
SeMI RCS NS SR RCC |
Conference Date |
2019-07-10 - 2019-07-12 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
I-Site Nanba(Osaka) |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Communication and Networked Control for the Future Radio of the AI Age, etc |
Paper Information |
Registration To |
RCS |
Conference Code |
2019-07-SeMI-RCS-NS-SR-RCC |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
A Study on Concatenated Beam- and Antenna- domain Layered BP for Large MIMO Detection |
Sub Title (in English) |
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Keyword(1) |
Large MIMO |
Keyword(2) |
Belief propagation |
Keyword(3) |
Beam-domain processing |
Keyword(4) |
Low complexity |
Keyword(5) |
Domain conversion |
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1st Author's Name |
Takumi Takahashi |
1st Author's Affiliation |
Osaka University (Osaka Univ.) |
2nd Author's Name |
Antti Tolli |
2nd Author's Affiliation |
University of Oulu (Univ. of Oulu) |
3rd Author's Name |
Shinsuke Ibi |
3rd Author's Affiliation |
Doshisha University (Doshisha Univ.) |
4th Author's Name |
Seiichi Sampei |
4th Author's Affiliation |
Osaka University (Osaka Univ.) |
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Speaker |
Author-1 |
Date Time |
2019-07-10 15:20:00 |
Presentation Time |
25 minutes |
Registration for |
RCS |
Paper # |
RCC2019-15, NS2019-48, RCS2019-105, SR2019-24, SeMI2019-24 |
Volume (vol) |
vol.119 |
Number (no) |
no.106(RCC), no.107(NS), no.108(RCS), no.109(SR), no.110(SeMI) |
Page |
pp.21-26(RCC), pp.31-36(NS), pp.25-30(RCS), pp.31-36(SR), pp.35-40(SeMI) |
#Pages |
6 |
Date of Issue |
2019-07-03 (RCC, NS, RCS, SR, SeMI) |
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