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Paper Abstract and Keywords
Presentation 2013-07-17 13:05
Study on Spatial Modulation in Multipath Environment
Nozomu Maeda, Hideichi Sasaoka, Hisato Iwai (Doshisha Univ.) RCS2013-78
Abstract (in Japanese) (See Japanese page) 
(in English) The MIMO (Multiple-Input Multiple-Output) system having multiple antennas at the both sides of the transmitter and the receiver has been studied, and SM (Spatial Modulation) has been recently proposed as a new concept for MIMO system which can offer high spectral efficiency with lower complexity. In the SM scheme, the receiver exploits the random variation of wireless channel between each pair of the transmit and the receive antennas and which detects not only the signal constellation but also the transmitting antenna. However, SM might not yield adequate performance in the environment where the direct wave is great because the signals emitted by the transmit antenna are not distinguishable from the others at the receiver. In this paper, we consider the system which detects the signal constellation and the transmitting antenna simultaneously by MLD (Maximum-Likelihood Detection). We evaluate by numerical computer simulations the performance of SM in a multipath environment where a delay wave exists and a direct wave is great. We show that the performance of SM can be improved in the environment where the delay wave exists, and newly propose the power allocation and the phase control of the transmit signals methods to improve the performance of SM where a direct wave is great.
Keyword (in Japanese) (See Japanese page) 
(in English) Spatial Modulation / Multipath Environment / Nakagami-Rice Fading Environment / Power Allocation / Phase Control / MLD / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 130, RCS2013-78, pp. 1-6, July 2013.
Paper # RCS2013-78 
Date of Issue 2013-07-10 (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)
Download PDF RCS2013-78

Conference Information
Committee ASN RCS NS SR  
Conference Date 2013-07-17 - 2013-07-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Hamamatsu Act City 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Wireless Distributed Networks, M2M (Machine-to-Machine), D2D (Device-to-Device), etc. 
Paper Information
Registration To RCS 
Conference Code 2013-07-ASN-RCS-NS-SR 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Study on Spatial Modulation in Multipath Environment 
Sub Title (in English)  
Keyword(1) Spatial Modulation  
Keyword(2) Multipath Environment  
Keyword(3) Nakagami-Rice Fading Environment  
Keyword(4) Power Allocation  
Keyword(5) Phase Control  
Keyword(6) MLD  
1st Author's Name Nozomu Maeda  
1st Author's Affiliation Doshisha University (Doshisha Univ.)
2nd Author's Name Hideichi Sasaoka  
2nd Author's Affiliation Doshisha University (Doshisha Univ.)
3rd Author's Name Hisato Iwai  
3rd Author's Affiliation Doshisha University (Doshisha Univ.)
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Date Time 2013-07-17 13:05:00 
Presentation Time 25 
Registration for RCS 
Paper # IEICE-RCS2013-78 
Volume (vol) IEICE-113 
Number (no) no.130 
Page pp.1-6 
#Pages IEICE-6 
Date of Issue IEICE-RCS-2013-07-10 

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