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Paper Abstract and Keywords
Presentation 2015-02-20 12:40
[Invited Lecture] Proposal of fast weight generation method for hand jiggling compensation in short-range MIMO transmission
Kazumitsu Sakamoto, Ken Hiraga, Maki Arai, Tomohiro Seki, Toshimitsu Tsubaki, Hideki Toshinaga, Tadao Nakagawa (NTT) AP2014-203
Abstract (in Japanese) (See Japanese page) 
(in English) In non-contact high speed data transfer applying short-range multiple-input multiple-output (SR-MIMO) transmission in millimeter wave band, the influence of time varying channels due to user’s hand jiggling can not be ignored, and large processing delay from channel estimation to downlink communication start in KIOSK terminal degrades the performance of transmit beamforming (TxBF). In this report, we propose a fast weight generation method that generate transmit weight with low delay using channel variation information and zero-forcing (ZF) weight generated in the past. Also, we show that the proposed method can reduce the weight generation time and can improve the TxBF’s performance in time varying channels compared to conventional ZF-BF by computer simulation.
Keyword (in Japanese) (See Japanese page) 
(in English) short-range MIMO / millimeter-wave / hand jiggling compensation / transmit beamforming / / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 450, AP2014-203, pp. 89-94, Feb. 2015.
Paper # AP2014-203 
Date of Issue 2015-02-12 (AP) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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 AP  
Conference Date 2015-02-19 - 2015-02-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Chusho-kigyou center at Amagasaki-City 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Antennas and Propagation, Company special edition 
Paper Information
Registration To AP 
Conference Code 2015-02-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Proposal of fast weight generation method for hand jiggling compensation in short-range MIMO transmission 
Sub Title (in English)  
Keyword(1) short-range MIMO  
Keyword(2) millimeter-wave  
Keyword(3) hand jiggling compensation  
Keyword(4) transmit beamforming  
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1st Author's Name Kazumitsu Sakamoto  
1st Author's Affiliation Nippon Telegragh and Telephone Corporation (NTT)
2nd Author's Name Ken Hiraga  
2nd Author's Affiliation Nippon Telegragh and Telephone Corporation (NTT)
3rd Author's Name Maki Arai  
3rd Author's Affiliation Nippon Telegragh and Telephone Corporation (NTT)
4th Author's Name Tomohiro Seki  
4th Author's Affiliation Nippon Telegragh and Telephone Corporation (NTT)
5th Author's Name Toshimitsu Tsubaki  
5th Author's Affiliation Nippon Telegragh and Telephone Corporation (NTT)
6th Author's Name Hideki Toshinaga  
6th Author's Affiliation Nippon Telegragh and Telephone Corporation (NTT)
7th Author's Name Tadao Nakagawa  
7th Author's Affiliation Nippon Telegragh and Telephone Corporation (NTT)
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Speaker Author-1 
Date Time 2015-02-20 12:40:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2014-203 
Volume (vol) vol.114 
Number (no) no.450 
Page pp.89-94 
#Pages
Date of Issue 2015-02-12 (AP) 


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