| Presentation | 2017-04-24 Study on turbo-coded grant-free massive machine type communications scheme with physical layer security for performance improvement Eiji Okamoto, Naoto Horiike, Tetsuya Yamamoto, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(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) |
| Keyword(in English) | 5G / mMTC / non-orthogonal multiple access scheme / chaos / physical layer security / grant free transmission |
| Paper # | RCS2017-7 |
| Date of Issue | 2017-04-17 (RCS) |
| Conference Information | |
| Committee | RCS |
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| Conference Date | 2017/4/24(2days) |
| 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. |
| Chair | Hidekazu Murata(Kyoto Univ.) |
| Vice Chair | Satoshi Denno(Okayama Univ.) / Yukitoshi Sanada(Keio Univ.) / Eisuke Fukuda(Fujitsu Labs.) |
| Secretary | Satoshi Denno(Toshiba) / Yukitoshi Sanada(NTT DoCoMo) / Eisuke Fukuda |
| Assistant | Tetsuya Yamamoto(Panasonic) / Toshihiko Nishimura(Hokkaido Univ.) / Koichi Ishihara(NTT) / Kazushi Muraoka(NEC) / Shinsuke Ibi(Osaka Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems |
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| Language | JPN |
| 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 |
| 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) |
| Date | 2017-04-24 |
| Paper # | RCS2017-7 |
| Volume (vol) | vol.117 |
| Number (no) | RCS-11 |
| Page | pp.pp.35-40(RCS), |
| #Pages | 6 |
| Date of Issue | 2017-04-17 (RCS) |