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Paper Abstract and Keywords
Presentation 2016-07-20 16:15
Differential MIMO Spatial Multiplexing Employing PADM Based on Channel Prediction for Fast Time-Varying Channels
Toshiki Mori, Takuma Yamagishi, Akinobu Murayama, Hiroshi Kubo (Ritsumeikan Univ.) RCS2016-100
Abstract (in Japanese) (See Japanese page) 
(in English) This paper proposes a demodulation scheme based on channel prediction for differential multiple-input multiple-output (MIMO) spatial multiplexing employing per transmit antenna differential mapping (PADM). As PADM is one of differential space-time trellis coding (DSTTC), it has to employ per-survivor processing (PSP) based on the Viterbi algorithm (VA) for its demodulation. Therefore, PADM has excellent tracking performance on fast time-varying channels. However, aiming at higher frequency efficiency, PADM for higher modulation index suffers from the following two disadvantages: (1) poor sensitivity performance; (2) large computational complexity. In order to solve the disadvantages of (1) and (2), this paper employs spatial multiplexing structure and state reduction algorithm for the VA, i.e., decision-feedback sequence estimation (DFSE), respectively. Finally, in the case of 4bps/Hz and 2 receive antennas, computer simulation results confirm that the proposed scheme has excellent BER performance on fast time-varying channels in the case of the maximum Doppler frequency normalized by symbol rate of 4%.
Keyword (in Japanese) (See Japanese page) 
(in English) Multiple-Input Multiple-Output / Differential Space-Time Coding / Spatial Multiplexing / Per-Survivor Processing / Channel Prediction / / /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 147, RCS2016-100, pp. 35-40, July 2016.
Paper # RCS2016-100 
Date of Issue 2016-07-13 (RCS) 
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 RCS RCC ASN NS SR  
Conference Date 2016-07-20 - 2016-07-22 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English) Wireless Distributed Network, M2M: Machine-to-Machine, D2D (Device-to-Device),etc. 
Paper Information
Registration To RCS 
Conference Code 2016-07-RCS-RCC-ASN-NS-SR 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Differential MIMO Spatial Multiplexing Employing PADM Based on Channel Prediction for Fast Time-Varying Channels 
Sub Title (in English)  
Keyword(1) Multiple-Input Multiple-Output  
Keyword(2) Differential Space-Time Coding  
Keyword(3) Spatial Multiplexing  
Keyword(4) Per-Survivor Processing  
Keyword(5) Channel Prediction  
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1st Author's Name Toshiki Mori  
1st Author's Affiliation Ritsumeikan University (Ritsumeikan Univ.)
2nd Author's Name Takuma Yamagishi  
2nd Author's Affiliation Ritsumeikan University (Ritsumeikan Univ.)
3rd Author's Name Akinobu Murayama  
3rd Author's Affiliation Ritsumeikan University (Ritsumeikan Univ.)
4th Author's Name Hiroshi Kubo  
4th Author's Affiliation Ritsumeikan University (Ritsumeikan Univ.)
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Speaker Author-1 
Date Time 2016-07-20 16:15:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # RCS2016-100 
Volume (vol) vol.116 
Number (no) no.147 
Page pp.35-40 
#Pages
Date of Issue 2016-07-13 (RCS) 


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