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Paper Abstract and Keywords
Presentation 2018-06-20 15:00
Relationship between Interference-Wave Suppression Using Null-Space Extension in Multiuser MIMO and formed Beam-Pattern
Hironori Ban, Makoto Taromaru, Mai Ohta (Fukuoka Univ.) RCS2018-43
Abstract (in Japanese) (See Japanese page) 
(in English) Some papers reported that a zero-forcing (ZF) adaptive array antenna or
multi-user MIMO system at basestations can be robust against channel fluctuation by using null-space dimension expansion. It sets the combining weights be orthogonal not only to the most recent channels of the interferers but also to the previous paster ones.
This report discuss the relationship between the beam pattern formed for Rayleigh and Nakagami Rice fading and AoA(angle of arrival) of each the incident wave from the interference terminals, and a null pattern is formed in AoA of the elementary wave using computer simulation. In addition, it also refers to the relationship between degradation of SIR due to terminal movement during channel estimation period and null-space dimension expansion and evaluates it in terms of characteristics of SIR to show the validity of theoretical investigation.
Keyword (in Japanese) (See Japanese page) 
(in English) adaptive array antenna / degree of freedom / MIMO / diversity / zero-forcing / null-space extension / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 101, RCS2018-43, pp. 49-54, June 2018.
Paper # RCS2018-43 
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)
Download PDF RCS2018-43

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) Relationship between Interference-Wave Suppression Using Null-Space Extension in Multiuser MIMO and formed Beam-Pattern 
Sub Title (in English)  
Keyword(1) adaptive array antenna  
Keyword(2) degree of freedom  
Keyword(3) MIMO  
Keyword(4) diversity  
Keyword(5) zero-forcing  
Keyword(6) null-space extension  
Keyword(7)  
Keyword(8)  
1st Author's Name Hironori Ban  
1st Author's Affiliation Fukuoka University (Fukuoka Univ.)
2nd Author's Name Makoto Taromaru  
2nd Author's Affiliation Fukuoka University (Fukuoka Univ.)
3rd Author's Name Mai Ohta  
3rd Author's Affiliation Fukuoka University (Fukuoka Univ.)
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Speaker Author-1 
Date Time 2018-06-20 15:00:00 
Presentation Time 10 minutes 
Registration for RCS 
Paper # RCS2018-43 
Volume (vol) vol.118 
Number (no) no.101 
Page pp.49-54 
#Pages 6 
Date of Issue 2018-06-13 (RCS) 

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