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Paper Abstract and Keywords
Presentation 2016-06-23 10:30
A Study on Cost Reduction of Ordering Calculation Using Frequency Correlation in MU-MIMO-OFDM THP
Nobuhiro Hiruma, Tomoki Maruko (Waseda Univ.), Hiromichi Tomeba, Takashi Onodera (Sharp), Fumiaki Maehara (Waseda Univ.) RCS2016-62
Abstract (in Japanese) (See Japanese page) 
(in English) In MU-MIMO THP, the ordering process is effective to improve the transmission performance. However, the ordering process causes a large amount of computational effort especially in application to OFDM. This is because this process has to be conducted in each subcarrier. To cope with this problem, we propose an efficient ordering calculation method employing frequency correlation. The basic idea behind this proposal is that the ordering results are considered to be the same among the neighboring sub-carriers in relatively small delay spread. Moreover, the frequency correlation is theoretically obtained from the delay spread which is determined by the instantaneous impulse responses of multiple transmit antennas. The effectiveness of the proposed method is demonstrated in terms of calculation cost and the bit error rate (BER) by comparing with the traditional MU-MIMO-OFDM THP without thinning.
Keyword (in Japanese) (See Japanese page) 
(in English) MU-MIMO / OFDM / THP / ordering / frequency correlation / computational cost / /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 110, RCS2016-62, pp. 93-98, June 2016.
Paper # RCS2016-62 
Date of Issue 2016-06-15 (RCS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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 2016-06-22 - 2016-06-24 
Place (in Japanese) (See Japanese page) 
Place (in English) Univ. of the Ryukyus 
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 2016-06-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Cost Reduction of Ordering Calculation Using Frequency Correlation in MU-MIMO-OFDM THP 
Sub Title (in English)  
Keyword(1) MU-MIMO  
Keyword(2) OFDM  
Keyword(3) THP  
Keyword(4) ordering  
Keyword(5) frequency correlation  
Keyword(6) computational cost  
1st Author's Name Nobuhiro Hiruma  
1st Author's Affiliation Waseda University (Waseda Univ.)
2nd Author's Name Tomoki Maruko  
2nd Author's Affiliation Waseda University (Waseda Univ.)
3rd Author's Name Hiromichi Tomeba  
3rd Author's Affiliation Sharp Corporation (Sharp)
4th Author's Name Takashi Onodera  
4th Author's Affiliation Sharp Corporation (Sharp)
5th Author's Name Fumiaki Maehara  
5th Author's Affiliation Waseda University (Waseda Univ.)
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Speaker Author-1 
Date Time 2016-06-23 10:30:00 
Presentation Time 10 minutes 
Registration for RCS 
Paper # RCS2016-62 
Volume (vol) vol.116 
Number (no) no.110 
Page pp.93-98 
Date of Issue 2016-06-15 (RCS) 

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