| Presentation | 2023-03-01 Experimental study on reception of 16QAM-OFDM signals using wideband noise and 1bit ADC Takuto Ohtaguro, Masato Saito, Takaya Yamazato, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this study, we conduct experiments on demodulating 16QAM (Quadrature Amplitude Modulation)-OFDM (Orthogonal Frequency Division Multiplexing) signals using wideband noise and 1bit ADC (Analogue-to-Digital Converter). Although 1bit ADC cannot distinguish signal level, wideband noise, oversampling, and stochastic processing of the 1bit ADC ouput make the 16QAM-OFDM signals be demodulated with error free. In our previous study, we applied LPF (Low Pass Filter) after frequency-conversion to generate baseband signals to remove the harmonic components of the baseband signals. In this study, by removing the LPF or bandlimiting loosely, we confirm that error free transmission is possible for 500 byte of 16QAM-OFDM signals with appropriate level of wideband noise. When the cutoff frequency of the low-pass filter was varied, a lower error rate was achieved with a wider noise bandwidth. The wider the noise bandwidth, the wider the signal-to-noise power density ratio at which a low error rate can be achieved. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | 1bit ADC / 16QAM / OFDM / wideband noise / oversampling / analytic signal |
| Paper # | RCS2022-247 |
| Date of Issue | 2023-02-22 (RCS) |
| Conference Information | |
| Committee | RCS / SR / SRW |
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| Conference Date | 2023/3/1(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tokyo Institute of Technology, and Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Chair | Kenichi Higuchi(Tokyo Univ. of Science) / Suguru Kameda(Hiroshima Univ.) / Hanako Noda(Anritsu) |
| Vice Chair | Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) / Osamu Muta(Kyushu Univ.) / Osamu Takyu(Shinshu Univ.) / Kentaro Ishidu(NICT) / Kazuto Yano(ATR) / Keiichi Mizutani(Kyoto Univ.) / Kentaro Saito(Tokyo Denki Univ.) / Hirokazu Sawada(NICT) |
| Secretary | Tomoya Tandai(Panasonic) / Fumihide Kojima(Univ. of Electro-Comm) / Osamu Muta(Sharp) / Osamu Takyu(Mie Univ.) / Kentaro Ishidu(Tokai Univ.) / Kazuto Yano(NTT) / Keiichi Mizutani(KUT) / Kentaro Saito(NIigata Univ.) / Hirokazu Sawada |
| Assistant | Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Issei Kanno(KDDI Research) / Yuyuan Chang(Tokyo Inst. of Tech) / Kazuki Maruta(Tokyo Univ. of Science) / Mai Ohta(NEC) / WANG Xiaoyan(Ibaraki Univ.) / Akemi Tanaka(MathWorks) / Katsuya Suto(Univ. of Electro-Comm) / Maki Arai(Nihon Univ.) / Yuichi Masuda(Univ. of Tokyo) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems / Technical Committee on Smart Radio / Technical Committee on Short Range Wireless Communications |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Experimental study on reception of 16QAM-OFDM signals using wideband noise and 1bit ADC |
| Sub Title (in English) | |
| Keyword(1) | 1bit ADC |
| Keyword(2) | 16QAM |
| Keyword(3) | OFDM |
| Keyword(4) | wideband noise |
| Keyword(5) | oversampling |
| Keyword(6) | analytic signal |
| 1st Author's Name | Takuto Ohtaguro |
| 1st Author's Affiliation | University of the Ryukyus(Ryukyu Univ.) |
| 2nd Author's Name | Masato Saito |
| 2nd Author's Affiliation | University of the Ryukyus(Ryukyu Univ.) |
| 3rd Author's Name | Takaya Yamazato |
| 3rd Author's Affiliation | Nagoya University(Nagoya Univ.) |
| Date | 2023-03-01 |
| Paper # | RCS2022-247 |
| Volume (vol) | vol.122 |
| Number (no) | RCS-399 |
| Page | pp.pp.1-8(RCS), |
| #Pages | 8 |
| Date of Issue | 2023-02-22 (RCS) |