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Paper Abstract and Keywords
Presentation 2017-04-24 12:10
Study on turbo-coded grant-free massive machine type communications scheme with physical layer security for performance improvement
Eiji Okamoto, Naoto Horiike (NITech), Tetsuya Yamamoto (Panasonic) RCS2017-7
Abstract (in Japanese) (See Japanese page) 
(in English) In the fifth generation mobile communication systems (5G), massive machine type communications (mMTC) scenarios that accommodate internet of things (IoT) device communications are considered. For mMTC, we have proposed a grant-free sparse chaos code multiple access (GF-SCCMA) scheme, in which space code multiple access is composed based on chaos signal and the physical layer security is ensured. However, in the previous study, the outer channel-code concatenation was not considered. Therefore, in this study, we propose a GF-SCCMA system with turbo-code concatenation for performance improvement. The outer turbo code is concatenated in the transmitter and an iterative turbo decoding is conducted between SCCMA signal detector and the turbo decoder using log likelihood ratio (LLR). The improved performances of the proposed scheme are shown through numerical simulations, especially when the number of transmit users are large.
Keyword (in Japanese) (See Japanese page) 
(in English) 5G / mMTC / non-orthogonal multiple access scheme / chaos / physical layer security / grant free transmission / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 11, RCS2017-7, pp. 35-40, April 2017.
Paper # RCS2017-7 
Date of Issue 2017-04-17 (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 RCS2017-7

Conference Information
Committee RCS  
Conference Date 2017-04-24 - 2017-04-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Kotohira Onsen Kotosankaku 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Radio Access Technologies, etc. 
Paper Information
Registration To RCS 
Conference Code 2017-04-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Study on turbo-coded grant-free massive machine type communications scheme with physical layer security for performance improvement 
Sub Title (in English)  
Keyword(1) 5G  
Keyword(2) mMTC  
Keyword(3) non-orthogonal multiple access scheme  
Keyword(4) chaos  
Keyword(5) physical layer security  
Keyword(6) grant free transmission  
Keyword(7)  
Keyword(8)  
1st Author's Name Eiji Okamoto  
1st Author's Affiliation Nagoya Institute of Technology (NITech)
2nd Author's Name Naoto Horiike  
2nd Author's Affiliation Nagoya Institute of Technology (NITech)
3rd Author's Name Tetsuya Yamamoto  
3rd Author's Affiliation Panasonic Corporation (Panasonic)
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Speaker Author-1 
Date Time 2017-04-24 12:10:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # RCS2017-7 
Volume (vol) vol.117 
Number (no) no.11 
Page pp.35-40 
#Pages 6 
Date of Issue 2017-04-17 (RCS) 

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