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Paper Abstract and Keywords
Presentation 2017-06-22 11:20
Fundamental Considerations on Computational Complexity Reduction Using Receive Matrix Interpolation in a MIMO-OFDM System
Kensei Saito, Yasutaka Ogawa, Toshihiko Nishimura, Takeo Ohgane (Hokkaido Univ.) RCS2017-70
Abstract (in Japanese) (See Japanese page) 
(in English) In multiple-input multiple-output (MIMO) systems, separation of multiple streams is often performed by multiplying a weight matrix at the receiving side. When the number of transmit and receive antennas increases, the amount of calculations for obtaining the optimum weight matrix increases. In addition, in an OFDM system, since the weight matrix needs to be calculated for each subcarrier, this becomes a more serious problem. We can reduce the amount of calculations by an interpolation technique. We obtain the optimum weight matrices for a part of subcarriers, and for the remaining subcarriers, we calculate the weight matrices using interpolation. In this paper, we examine interpolation techniques and evaluate the performance for non-Massive MIMO environments where we do not have many transmit and receive antennas.
Keyword (in Japanese) (See Japanese page) 
(in English) MIMO System / OFDM / Spatial Multiplexing / Zero-Forcing / DFT / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 103, RCS2017-70, pp. 121-126, June 2017.
Paper # RCS2017-70 
Date of Issue 2017-06-14 (RCS) 
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)
Download PDF RCS2017-70

Conference Information
Committee RCS  
Conference Date 2017-06-21 - 2017-06-23 
Place (in Japanese) (See Japanese page) 
Place (in English) Ishigaki Shoukou Kaikan 
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 2017-06-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Fundamental Considerations on Computational Complexity Reduction Using Receive Matrix Interpolation in a MIMO-OFDM System 
Sub Title (in English)  
Keyword(1) MIMO System  
Keyword(2) OFDM  
Keyword(3) Spatial Multiplexing  
Keyword(4) Zero-Forcing  
Keyword(5) DFT  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Kensei Saito  
1st Author's Affiliation Hokkaido University (Hokkaido Univ.)
2nd Author's Name Yasutaka Ogawa  
2nd Author's Affiliation Hokkaido University (Hokkaido Univ.)
3rd Author's Name Toshihiko Nishimura  
3rd Author's Affiliation Hokkaido University (Hokkaido Univ.)
4th Author's Name Takeo Ohgane  
4th Author's Affiliation Hokkaido University (Hokkaido Univ.)
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Speaker Author-1 
Date Time 2017-06-22 11:20:00 
Presentation Time 10 minutes 
Registration for RCS 
Paper # RCS2017-70 
Volume (vol) vol.117 
Number (no) no.103 
Page pp.121-126 
#Pages 6 
Date of Issue 2017-06-14 (RCS) 

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