| Presentation | 2019-03-07 [Encouragement Talk] A Study of Signal Transmission Forms of Optical Wireless turbo Code system Ran Sun, Hiromasa Habuchi, Yusuke Kozawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | For improving the reliability of optical wireless communications, the implementations of error correcting codes are investigated. As the typical modulation schemes used in optical wireless system using turbo code, which is one of the error correcting codes, pulse position modulation (PPM) and on-off keying (OOK) are well known. Although the transmission efficiency of OOK system is excellent, this system has an optimum decision level adjustment problem and a bit-slip problem. The PPM system does not have those problems, but the transmission efficiency becomes half of that of the OOK system. For solving the respective issues of OOK and PPM, Framed-DOOK, which can reduce background noise by taking difference, APPM, which combines amplitude shift keying (ASK) with OOK, and Hybrid PPM-OOK, which transmits signal using PPM and OOK simultaneously, have been proposed. In this presentation, the effective information rate (capacity) performances of the proposed systems are evaluated by computer simulation. As results, HPOS system, APPM system present the same bit error rate performance of the conventional PPM system, and have 1.5 times larger capacity than that of the conventional PPM system. For the tolerance to background noise, APPM system is the best of the 3 proposed systems. HPOS system shows the best performance at the tolerance to attenuation. In good communication environments (high transmitted power, low background noise, low attenuation), Framed-DOOK can achieve the highest effective information rate. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Optical wireless communication / Turbo code / Framed-DOOK / APPM / Hybrid PPM-OOK / Effective information rate / Capacity |
| Paper # | IT2018-96,ISEC2018-102,WBS2018-97 |
| Date of Issue | 2019-02-28 (IT, ISEC, WBS) |
| Conference Information | |
| Committee | IT / ISEC / WBS |
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| Conference Date | 2019/3/7(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | University of Electro-Communications |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | joint meeting of IT, ISEC, and WBS |
| Chair | Jun Muramatsu(NTT) / Atsushi Fujioka(Kanagawa Univ.) / Minoru Okada(NAIST) |
| Vice Chair | Tadashi Wadayama(Nagoya Inst. of Tech.) / Shiho Moriai(NICT) / Shoichi Hirose(Univ. of Fukui) / Koji Ohuchi(Shizuoka Univ.) / Kenichi Takizawa(NICT) |
| Secretary | Tadashi Wadayama(Nagano Pref Inst. of Tech.) / Shiho Moriai(UEC) / Shoichi Hirose(Tokai Univ.) / Koji Ohuchi(NICT) / Kenichi Takizawa(Ibaraki Univ.) |
| Assistant | Takahiro Yoshida(Yokohama College of Commerce) / Kazunari Omote(Tsukuba Univ.) / Yuuji Suga(IIJ) / Ryohei Nakamura(National Defense Academy) / Duong Quang Thang(NAIST) |
| Paper Information | |
| Registration To | Technical Committee on Information Theory / Technical Committee on Information Security / Technical Committee on Wideband System |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Encouragement Talk] A Study of Signal Transmission Forms of Optical Wireless turbo Code system |
| Sub Title (in English) | |
| Keyword(1) | Optical wireless communication |
| Keyword(2) | Turbo code |
| Keyword(3) | Framed-DOOK |
| Keyword(4) | APPM |
| Keyword(5) | Hybrid PPM-OOK |
| Keyword(6) | Effective information rate |
| Keyword(7) | Capacity |
| 1st Author's Name | Ran Sun |
| 1st Author's Affiliation | Ibaraki University(Ibaraki Univ.) |
| 2nd Author's Name | Hiromasa Habuchi |
| 2nd Author's Affiliation | Ibaraki University(Ibaraki Univ.) |
| 3rd Author's Name | Yusuke Kozawa |
| 3rd Author's Affiliation | Ibaraki University(Ibaraki Univ.) |
| Date | 2019-03-07 |
| Paper # | IT2018-96,ISEC2018-102,WBS2018-97 |
| Volume (vol) | vol.118 |
| Number (no) | IT-477,ISEC-478,WBS-479 |
| Page | pp.pp.127-130(IT), pp.127-130(ISEC), pp.127-130(WBS), |
| #Pages | 4 |
| Date of Issue | 2019-02-28 (IT, ISEC, WBS) |