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Paper Abstract and Keywords
Presentation 2018-06-22 16:05
A Study on Superposed 16QAM Signal Detection Using GaBP in Massive MIMO
Taisei Watabe, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Junichiro Hagiwara (Hokkaido Univ.) RCS2018-78
Abstract (in Japanese) (See Japanese page) 
(in English) A massive MIMO system, which uses about 100 or more antennas for transmitting and receiving, enables high-speed and large-capacity communication. However, the computational complexity increases in proportion to the cube of the number of elements when general signal demultiplexing methods are used. Thus, it becomes difficult to implement a large scale MIMO system. To overcome this problem, GaBP having the second order complexity has been studied. Although GaBP provides a reasonably good performance for 16QAM detection, it is mentioned that both a complexity increase and performance degradation are seen for higher-level modulation. In this paper, we evaluate the detection performance for superposed 16QAM signals that can simplify GaBP based detection. The simulation results have shown that a better performance is obtained in the superposed coded 16QAM case in comparison to the case of Gray-mapped uniform 16QAM.
Keyword (in Japanese) (See Japanese page) 
(in English) MIMO / Spatial Multiplexing / Gaussian Belief Propagation / 16QAM / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 101, RCS2018-78, pp. 255-260, June 2018.
Paper # RCS2018-78 
Date of Issue 2018-06-13 (RCS) 
ISSN Online edition: ISSN 2432-6380
Copyright
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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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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) A Study on Superposed 16QAM Signal Detection Using GaBP in Massive MIMO 
Sub Title (in English)  
Keyword(1) MIMO  
Keyword(2) Spatial Multiplexing  
Keyword(3) Gaussian Belief Propagation  
Keyword(4) 16QAM  
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1st Author's Name Taisei Watabe  
1st Author's Affiliation Hokkaido University (Hokkaido Univ.)
2nd Author's Name Toshihiko Nishimura  
2nd Author's Affiliation Hokkaido University (Hokkaido Univ.)
3rd Author's Name Takeo Ohgane  
3rd Author's Affiliation Hokkaido University (Hokkaido Univ.)
4th Author's Name Yasutaka Ogawa  
4th Author's Affiliation Hokkaido University (Hokkaido Univ.)
5th Author's Name Junichiro Hagiwara  
5th Author's Affiliation Hokkaido University (Hokkaido Univ.)
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Speaker Author-1 
Date Time 2018-06-22 16:05:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # RCS2018-78 
Volume (vol) vol.118 
Number (no) no.101 
Page pp.255-260 
#Pages
Date of Issue 2018-06-13 (RCS) 


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