| Presentation | 2019-03-08 [Invited Lecture] Direct RF Undersampling Receiver for Wireless IoT Real-time Spectrum Monitor using High-speed Clock Switching Tomoyuki Furuichi, Mizuki Motoyoshi, Suguru Kameda, Noriharu Suematsu, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, with the popularization of wireless IoT (Internet of Things), real time frequency sensing technology for multi bands (920 MHz band, 2.4 GHz band, 5-6 GHz band) used by wireless IoT devices is required. We have proposed a direct RF undersampling receiver for real-time spectrum monitoring. It has a multi-band characteristic that can monitor the wireless IoT frequency bands with a sampling clock of several hundred MHz with single receiver and real-time characteristic that can capture millisecond class signals without missed observing. The proposed receiver achieves multi-band characteristic by sampling several times with switch the sampling clock. In this report, the real-time characteristic of the proposed receiver is calculated and it is evaluated by an experiment using the pulse pattern generator as the high-speed variable clock source. In addition, aliasing noise due to undersampling in the proposed receiver is estimated and it is confirmed that the required SNR for spectrum monitor can be secured. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | IoT / Spectrum Sensing / Cognitive Radio / Undersampling / Digital RF / Microwaves |
| Paper # | SR2018-139 |
| Date of Issue | 2019-02-27 (SR) |
| Conference Information | |
| Committee | RCS / SR / SRW |
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| Conference Date | 2019/3/6(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | YRP |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Chair | Tomoaki Otsuki(Keio Univ.) / Kenta Umebayashi(Tokyo Univ. of Agric. and Tech.) / Tadao Nakagawa(Tottori Univ.) |
| Vice Chair | Eisuke Fukuda(Fujitsu Labs.) / Satoshi Suyama(NTT Docomo) / Fumiaki Maehara(Waseda Univ.) / Masayuki Ariyoshi(NEC) / Suguru Kameda(Tohoku Univ.) / Satoshi Denno(Okayama Univ.) / Makoto Hamaminato(Fujitsu labs.) |
| Secretary | Eisuke Fukuda(Hokkaido Univ.) / Satoshi Suyama(NTT) / Fumiaki Maehara(NICT) / Masayuki Ariyoshi(ATR) / Suguru Kameda(Univ. of Electro-Comm.) / Satoshi Denno(Kyoto Univ.) / Makoto Hamaminato(Tokyo Inst. of Tech.) |
| Assistant | Kazushi Muraoka(NTT Docomo) / Shinsuke Ibi(Osaka Univ.) / Hiroshi Nishimoto(Mitsubishi Electric) / Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Gia Khanh Tran(Tokyo Inst. of Tech.) / Syusuke Narieda(Mie Univ.) / Koji Ohshima(Kozo Keikaku Engineering) / Mai Ohta(Fukuoka Univ.) / Teppei Oyama(Fujitsu Lab.) / Hiromasa Yamauchi(Fujitsu labs.) / Hanako Noda(Anritsu) |
| 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) | [Invited Lecture] Direct RF Undersampling Receiver for Wireless IoT Real-time Spectrum Monitor using High-speed Clock Switching |
| Sub Title (in English) | |
| Keyword(1) | IoT |
| Keyword(2) | Spectrum Sensing |
| Keyword(3) | Cognitive Radio |
| Keyword(4) | Undersampling |
| Keyword(5) | Digital RF |
| Keyword(6) | Microwaves |
| 1st Author's Name | Tomoyuki Furuichi |
| 1st Author's Affiliation | Tohoku University(Tohoku Univ.) |
| 2nd Author's Name | Mizuki Motoyoshi |
| 2nd Author's Affiliation | Tohoku University(Tohoku Univ.) |
| 3rd Author's Name | Suguru Kameda |
| 3rd Author's Affiliation | Tohoku University(Tohoku Univ.) |
| 4th Author's Name | Noriharu Suematsu |
| 4th Author's Affiliation | Tohoku University(Tohoku Univ.) |
| Date | 2019-03-08 |
| Paper # | SR2018-139 |
| Volume (vol) | vol.118 |
| Number (no) | SR-475 |
| Page | pp.pp.103-109(SR), |
| #Pages | 7 |
| Date of Issue | 2019-02-27 (SR) |