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Paper Abstract and Keywords
Presentation 2012-10-17 09:00
Chaos MIMO-OFDM transmission scheme achieving physical-layer security in mobile channel environments
Eiji Okamoto (Nagoya Inst. Tech.) RCS2012-125
Abstract (in Japanese) (See Japanese page) 
(in English) Recently, wireless systems utilizing third person’s relaying such as wireless multihop/relay networks, which can enhance the coverage and capacity, have been attracting attention. In those wireless systems ensuring security which means data cannot be decoded by other than the target destination terminal is important. Although ensuring security at the physical-layer is effective since it strengthens the security, many of conventional physical-layer security schemes deteriorate the error rate performance which is desired to be improved. Our previous study showed that a chaotic communication with multiple-input multiple-output (MIMO) multiplexing transmission could achieve both the physical-layer security and the channel coding gain in tradeoff with the increase of decoding complexity. However, in that study the channel is assumed as flat fading and it cannot be applied into mobile communication environments. Therefore in this study, we propose a chaos-MIMO-orthogonal frequency division multiplexing (OFDM) transmission scheme in which the multipath fading channel can be equalized in the frequency domain, and show the improved performance in terms of channel coding gain by maximum likelihood decoding compared to the unencrypted conventional MIMO-OFDM. Furthermore, the secrecy capacity to eavesdroppers for the shared initial chaos signals is evaluated.
Keyword (in Japanese) (See Japanese page) 
(in English) chaos communication / MIMO-OFDM / Bernoulli shift map / maximum likelihood sequence estimation / / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 239, RCS2012-125, pp. 1-6, Oct. 2012.
Paper # RCS2012-125 
Date of Issue 2012-10-10 (RCS) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
Copyright
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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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee SR AN USN RCS  
Conference Date 2012-10-17 - 2012-10-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Fukuoka univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) wireless distributed network, general topics 
Paper Information
Registration To RCS 
Conference Code 2012-10-SR-AN-USN-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Chaos MIMO-OFDM transmission scheme achieving physical-layer security in mobile channel environments 
Sub Title (in English)  
Keyword(1) chaos communication  
Keyword(2) MIMO-OFDM  
Keyword(3) Bernoulli shift map  
Keyword(4) maximum likelihood sequence estimation  
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1st Author's Name Eiji Okamoto  
1st Author's Affiliation Nagoya Institute of Technology (Nagoya Inst. Tech.)
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Speaker
Date Time 2012-10-17 09:00:00 
Presentation Time 25 
Registration for RCS 
Paper # IEICE-RCS2012-125 
Volume (vol) IEICE-112 
Number (no) no.239 
Page pp.1-6 
#Pages IEICE-6 
Date of Issue IEICE-RCS-2012-10-10 


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