| Presentation | 2021-07-30 [Poster Presentation] 4-level ASK-PPM Turbo Coding System for Optical Wireless Communications Shotaro Iinuma, Ran Sun, Shigeki Takeda, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The conventional modulation schemes of turbo code systems in optical wireless communication, on-off-keying(OOK) and binary pulse position modulation(BPPM), have disadvantages such as weakness to background optical noise and poor transmission efficiency, respectively. In this paper, we propose a 4ASK-PPM system that combines the disadvantages of the conventional schemes in a way that they complement each other. In the proposed 4ASK-PPM system, the information bit and parity bit of the turbo code are modulated by BPPM and quadrature amplitude modulation (4ASK), respectively, and multiplied together for transmission. The performance of the proposed scheme is evaluated from both simulations and experiments. We evaluate the bit error rate (BER) performance of the proposed scheme in an additive white Gaussian noise (AWGN) channel by simulation. The results show that the proposed method can achieve BER=10^−4 with Eb/N0=4dB . We also evaluated the communication performance of the proposed method in an actual optical wireless communication channel through experiments. As a result, error-free communication was achieved using the proposed method. In addition, the effect of background noise was also evaluated experimentally: the error rate performance of OOK was severely degraded by the background noise, but the proposed 4ASK-PPM scheme was able to communicate without any effect of background noise as well as the conventional BPPM scheme. However, the proposed 4ASK-PPM scheme can achieve three times higher transmission efficiency than the BPPM scheme. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Optical wireless communication / Turbo codes / Bit error rate |
| Paper # | WBS2021-28,MICT2021-21 |
| Date of Issue | 2021-07-23 (WBS, MICT) |
| Conference Information | |
| Committee | WBS / MICT |
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| Conference Date | 2021/7/30(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Masanori Hamamura(Kochi Univ. of Tech.) / Eisuke Hanada(Saga Univ.) |
| Vice Chair | Takashi Shono(INTEL) / Masahiro Fujii(Utsunomiya Univ.) / Hirokazu Tanaka(Hiroshima City Univ.) / Daisuke Anzai(Nagoya Inst. of Tech.) |
| Secretary | Takashi Shono(National Defence Academy) / Masahiro Fujii(Chiba Univ.) / Hirokazu Tanaka(Yokohama National Univ.) / Daisuke Anzai(KISTEC) |
| Assistant | Masayuki Kinoshita(Chiba Univ. of Tech.) / Sun Ran(Ibaraki Univ.) / Takahiro Ito(Hiroshima City Univ) / Kento Takabayashi(Okayama Pref. Univ.) / Takuya Nishikawa(National Cerebral and Cardiovascular Center Hospital) |
| Paper Information | |
| Registration To | Technical Committee on Wideband System / Technical Committee on Healthcare and Medical Information Communication Technology |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Poster Presentation] 4-level ASK-PPM Turbo Coding System for Optical Wireless Communications |
| Sub Title (in English) | |
| Keyword(1) | Optical wireless communication |
| Keyword(2) | Turbo codes |
| Keyword(3) | Bit error rate |
| 1st Author's Name | Shotaro Iinuma |
| 1st Author's Affiliation | Ibaraki University(Ibaraki Univ.) |
| 2nd Author's Name | Ran Sun |
| 2nd Author's Affiliation | Ibaraki University(Ibaraki Univ.) |
| 3rd Author's Name | Shigeki Takeda |
| 3rd Author's Affiliation | Ibaraki University(Ibaraki Univ.) |
| Date | 2021-07-30 |
| Paper # | WBS2021-28,MICT2021-21 |
| Volume (vol) | vol.121 |
| Number (no) | WBS-129,MICT-130 |
| Page | pp.pp.34-38(WBS), pp.34-38(MICT), |
| #Pages | 5 |
| Date of Issue | 2021-07-23 (WBS, MICT) |